# Best Service Virtualization Software

*By [Adam Crivello](https://research.g2.com/insights/author/adam-crivello)*


Service virtualization software allows developers to test their applications by simulating various components of the eventual production environment. This software serves as a stand-in for elements that developers often have limited access to during testing, such as application programming interface (API) connections. By running tests in an environment that emulates complex interactions between real-world systems, development teams can find relevant issues early in the development process. This keeps software delivery efficient and streamlined while preemptively solving problems that would otherwise lead to delays.

Service virtualization software is closely related to [automation testing software](https://www.g2.com/categories/automation-testing), and often includes automation testing capabilities. However, automation testing automates the execution of specific test parameters, whereas service virtualization enables tests to be performed by mimicking real-world system behavior.

To qualify for inclusion in the Service Virtualization category, a product must:

- Simulate otherwise inaccessible production components for testing
- Emulate service and dependency behavior
- Allow assets to be shared between team members






## How Many Service Virtualization Software Products Does G2 Track?
**Total Products under this Category:** 22

### Category Stats (Jun 2026)
- **Average Rating**: 4.53/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product**: Beeceptor (+0.15%) - Among all products in this category, Beeceptor recorded the largest rating increase compared to last month
*Last updated: June 23, 2026*


## How Does G2 Rank Service Virtualization Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 2,000+ Authentic Reviews
- 22+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.


## Which Service Virtualization Software Is Best for Your Use Case?

- **Leader:** [Postman](https://www.g2.com/products/postman/reviews)
- **Easiest to Use:** [Postman](https://www.g2.com/products/postman/reviews)
- **Top Trending:** [ReadyAPI](https://www.g2.com/products/readyapi/reviews)
- **Best Free Software:** [Postman](https://www.g2.com/products/postman/reviews)


---

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---

## What Are the Top-Rated Service Virtualization Software Products in 2026?
### 1. [Postman](https://www.g2.com/products/postman/reviews)
Postman is the world’s leading API platform, used by more than 40 million developers and 500,000 organizations to build, test, and manage APIs at scale. With Postman, teams collaborate efficiently across the entire API lifecycle, including design, development, testing, security, documentation, and governance. The platform helps ensure consistency, quality, and enterprise-grade control. Postman also offers Agent Mode (beta), built on AWS Bedrock and trained with AWS SageMaker. Agent Mode enables developers to use natural language to debug requests, organize collections, document APIs, and automate workflows without switching tools or writing custom scripts.


**Average Rating:** 4.6/5.0
**Total Reviews:** 1,745

**Who Is the Company Behind Postman?**

- **Seller:** [Postman](https://www.g2.com/sellers/postman)
- **Year Founded:** 2014
- **HQ Location:** San Francisco, CA
- **Twitter:** @getpostman (55,430 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/3795851/ (3,450 employees on LinkedIn®)

**Who Uses This Product?**
- **Who Uses This:** Software Engineer, Software Developer
- **Top Industries:** Computer Software, Information Technology and Services
- **Company Size:** 39% Mid-Market, 35% Small-Business


#### What Are Postman's Pros and Cons?

**Pros:**

- Ease of Use (460 reviews)
- API Testing (394 reviews)
- API Management (304 reviews)
- Testing (278 reviews)
- Testing Efficiency (276 reviews)

**Cons:**

- Slow Performance (222 reviews)
- Performance Issues (202 reviews)
- Slow Loading (145 reviews)
- Resource Limitations (131 reviews)
- Limited Features (120 reviews)


### What Do G2 Reviewers Say About Postman?
*AI-generated summary from verified user reviews*

**Pros:**

- Users appreciate the **ease of use** of Postman, benefiting from its intuitive interface and powerful testing capabilities.
- Users appreciate the **intuitive interface** of Postman, which simplifies API testing and enhances collaboration among teams.
- Users love the **smooth API lifecycle** in Postman, enabling seamless testing, mocking, and automation in projects.
- Users appreciate the **ease of testing** with Postman, finding its interface intuitive and feature-rich for efficient API management.
- Users value the **testing efficiency** of Postman, appreciating its intuitive interface and seamless API management capabilities.

**Cons:**

- Users experience **slow performance** with Postman, particularly when handling large collections or multiple workspaces.
- Users often experience **performance issues** with Postman, especially regarding resource heaviness and slow sync between devices.
- Users often find Postman to have **slow loading times** , especially when managing large collections or using advanced features.
- Users find the **resource limitations** of Postman challenging, particularly with larger collections and internet dependency.
- Users find the **limited features** in Postman, especially for smaller teams, can hinder their usage and experience.

#### What Are Recent G2 Reviews of Postman?

**"[From Messy Curl Commands to Clean, Collaborative API Workflows](https://www.g2.com/survey_responses/postman-review-12931615)"**

**Rating:** 4.5/5.0 stars
*— RAVI R.*

[Read full review](https://www.g2.com/survey_responses/postman-review-12931615)

---

**"[Streamlining API Testing and Development](https://www.g2.com/survey_responses/postman-review-12958633)"**

**Rating:** 5.0/5.0 stars
*— Srinath  R.*

[Read full review](https://www.g2.com/survey_responses/postman-review-12958633)

---


#### What Are G2 Users Discussing About Postman?

- [What is Postman used for?](https://www.g2.com/discussions/what-is-postman-used-for) - 8 comments, 2 upvotes

### 2. [Parasoft Virtualize](https://www.g2.com/products/parasoft-virtualize/reviews)
Create, deploy, and manage virtual test environments—anytime, anywhere. During software testing you are often constrained by limited access to real data and live services in your test environment. The Parasoft service virtualization tool lets you create simulated equivalents that behave just like the real thing. Go beyond basic mocking and stubbing to create a more robust simulation for APIs and services. Deploy a “digital twin” of your test environment to use as a sandbox for partner development or as a virtual endpoint for internal testing. Virtualize goes beyond other service virtualization solutions with its integration with the Parasoft Continuous Testing Platform, which provides an intuitive browser-based interface for collaboration and coordination of your virtual services. You can bundle virtual assets and test cases into a virtual test environment, giving you full control over your test environment and the ability to test earlier and more completely. Testing is already hard, and it’s even harder when you can’t access components that are out of your control because systems are still evolving, difficult to access, difficult to scale, or difficult to configure. Parasoft Virtualize enables testers and developers to simulate services or data when access is limited or unreliable. Increase testing efficiency with service virtualization. » Remove test constraints. » Improve product quality. » Decrease time-to-market. » Reduce testing costs.


**Average Rating:** 4.9/5.0
**Total Reviews:** 14

**Who Is the Company Behind Parasoft Virtualize?**

- **Seller:** [Parasoft](https://www.g2.com/sellers/parasoft)
- **Year Founded:** 1987
- **HQ Location:** Monrovia, CA
- **Twitter:** @Parasoft (2,602 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/parasoft/ (298 employees on LinkedIn®)

**Who Uses This Product?**
- **Company Size:** 71% Enterprise, 14% Mid-Market



#### What Are Recent G2 Reviews of Parasoft Virtualize?

**"[Its a perfect choice to virtualize your APIs.](https://www.g2.com/survey_responses/parasoft-virtualize-review-7423638)"**

**Rating:** 5.0/5.0 stars
*— Satnam S.*

[Read full review](https://www.g2.com/survey_responses/parasoft-virtualize-review-7423638)

---

**"[Parasoft Virtualize is a valuable tool](https://www.g2.com/survey_responses/parasoft-virtualize-review-8547188)"**

**Rating:** 5.0/5.0 stars
*— Scott P.*

[Read full review](https://www.g2.com/survey_responses/parasoft-virtualize-review-8547188)

---


#### What Are G2 Users Discussing About Parasoft Virtualize?

- [What is Parasoft Virtualize used for?](https://www.g2.com/discussions/what-is-parasoft-virtualize-used-for)

### 3. [ReadyAPI](https://www.g2.com/products/readyapi/reviews)
ReadyAPI allows teams to create, manage, and execute automated functional, security, and performance tests of RESTful, SOAP, Kafka and other web services in one centralized interface inside your CI/CD pipeline – accelerating API quality for Agile and DevOps software teams. Get started by importing API definitions like OpenAPI/Swagger or AsyncAPI, testing and recording live API traffic, or virtualizing web services to remove pipeline dependencies.


**Average Rating:** 4.4/5.0
**Total Reviews:** 70

**Who Is the Company Behind ReadyAPI?**

- **Seller:** [SmartBear](https://www.g2.com/sellers/smartbear)
- **HQ Location:** Somerville, MA
- **Twitter:** @smartbear (16,468 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/108422/ (994 employees on LinkedIn®)

**Who Uses This Product?**
- **Top Industries:** Information Technology and Services, Computer Software
- **Company Size:** 45% Enterprise, 41% Mid-Market


#### What Are ReadyAPI's Pros and Cons?

**Pros:**

- Ease of Use (1 reviews)
- Easy Testing (1 reviews)
- Time-saving (1 reviews)

**Cons:**

- Expensive (1 reviews)
- High Licensing Cost (1 reviews)
- Licensing Issues (1 reviews)


### What Do G2 Reviewers Say About ReadyAPI?
*AI-generated summary from verified user reviews*

**Pros:**

- Users find ReadyAPI's **ease of use** enhances their testing experience, making test creation quick and efficient.
- Users find that **Easy Testing** significantly enhances the SoapUI experience, enabling robust and efficient test creation.
- Users value the **time-saving capabilities** of ReadyAPI, enabling quick test creation and improved testing efficiency.

**Cons:**

- Users find the **licensing costs** of ReadyAPI to be quite high for the value it provides.
- Users find the **licensing costs too high** for the overall value provided by ReadyAPI.
- Users feel the **licensing can be pretty pricey** , making it hard to justify the cost of ReadyAPI.

#### What Are Recent G2 Reviews of ReadyAPI?

**"[Enhances the SoapUI Experience for More Robust Testing](https://www.g2.com/survey_responses/readyapi-review-12263517)"**

**Rating:** 4.5/5.0 stars
*— Ray S.*

[Read full review](https://www.g2.com/survey_responses/readyapi-review-12263517)

---

**"[sprout social API](https://www.g2.com/survey_responses/readyapi-review-7779534)"**

**Rating:** 4.5/5.0 stars
*— Koyuki N.*

[Read full review](https://www.g2.com/survey_responses/readyapi-review-7779534)

---


#### What Are G2 Users Discussing About ReadyAPI?

- [When API testing is done?](https://www.g2.com/discussions/when-api-testing-is-done)
- [What is the best tool for API testing?](https://www.g2.com/discussions/what-is-the-best-tool-for-api-testing)
- [How does ReadyAPI test REST API?](https://www.g2.com/discussions/how-does-readyapi-test-rest-api)
- [What is ReadyAPI tool?](https://www.g2.com/discussions/what-is-readyapi-tool)

### 4. [Beeceptor](https://www.g2.com/products/beeceptor/reviews)
Beeceptor is an AI-powered API and Service virtualization platform that helps you eliminate dependencies, accelerate testing, and deliver software faster. Instead of waiting for backend services, third-party APIs, partner systems, or test environments, your teams can instantly create realistic virtual services and continue independently. Designed for QA engineers, SDETs, developers, architects, platform teams, solution engineers, and enterprise organizations, Beeceptor combines AI-assisted service creation, real-time traffic inspection, and enterprise-grade governance into a single platform that is easy to adopt and delivers value within minutes. You can connect it to agentic frameworks like Claude, GPT, Copilot, etc. ## Build virtual services in a few seconds. Traditional service virtualization tools often require specialized skills, lengthy setup cycles, and dedicated teams. Beeceptor takes a different approach. You can generate virtual services from OpenAPI specifications, Swagger files, GraphQL schemas, SOAP/WSDL definitions, Postman collections, sample requests and responses, or recorded API traffic in under 60 seconds. The AI automatically generates endpoints, mock responses, realistic test data, request validation rules, and service behaviors, dramatically reducing setup effort. ## Eliminate dependencies and enable shift-left testing Most often software delivery delays are caused by unavailable services, unstable test environments, vendor sandboxes, API rate limits, or dependencies on other teams. These small issues build up, and cause the delivery date to be pushed. Beeceptor allows teams to virtualize external dependencies, build isolated test environments, so your team work independently. ## Common use cases include: \* API and contract-first development \* Shift-left testing and quality engineering \* Frontend and mobile development before backend completion \* Integration and end-to-end testing \* Test suite integration, CI/CD automation, \* Partner and vendor sandbox environments \* Legacy system simulation \* Microservices testing \* Performance, chaos and resilience testing \* Developer onboarding and training environments ## AI-powered service virtualization Beeceptor uses AI natively to accelerate the creation and maintenance of mock/virtual services. Here are the top features \* Generate mock APIs from specifications and schemas. Upload Swagger, WSDL, GraphQL, gRPC, Postman, specs. \* Create realistic test data automatically from the context, field names, description, etc \* Use AI to fix human errors, in the context. \* Build OpenAPI spec from the recorded production traffic. \* Detect contract drifts in the implementation and get notified about it. ## Comprehensive protocol support Beeceptor supports modern API ecosystems and enterprise integration patterns, including: \* REST APIs \* OpenAPI and Swagger \* GraphQL \* SOAP and WSDL services \* Webhooks \* Web-socket \* Server-Sent Events (SSE) \* CRUD APIs - backed with a database. \* Mutual TLS (mTLS) \* HTTP-based enterprise integrations ## Dynamic and stateful service simulation Beyond simple static mocks, Beeceptor supports advanced service virtualization scenarios including the following. \* Stateful workflows \* Multi-step transactions \* Session-aware interactions \* Conditional responses \* Dynamic payload generation \* Request correlation \* Delays and latency conditions \* Network failures and error scenarios \* Rate limiting and throttling behavior \* Edge-case and negative-path testing ## Real-time visibility and traffic recording Beeceptor provides real-time visibility into API traffic as requests occur. This is best in the class, request response interception, so you can inspect requests, validate payloads, debug integrations, and identify issues without requiring access to upstream systems. ## Reduce infrastructure and API costs Their engineering rely on expensive third-party APIs, vendor sandboxes, or shared environments that incur usage costs and operational overhead. A lot of Beeceptor customers save cost. Beeceptor helps reduce: \* Third-party API consumption costs \* Usage-based API charges \* Vendor sandbox limitations \* Environment maintenance effort \* Infrastructure provisioning requirements \* Delays caused by shared testing resources ## Enterprise-ready by design Beeceptor is built for enterprise adoption and large-scale engineering organizations. Enterprise capabilities include: \* Single Sign-On (SSO) \* SAML integration \* Role-based access control \* Audit logs \* Governance and approval workflows \* IP allowlists and access controls \* Sensitive data masking in HTTP headers and payload. \* Private cloud deployment, On-premises deployment \* Dedicated infrastructure options \* Unlimited-scale enterprise usage ## Faster time-to-value The biggest advantage of Beeceptor is speed. You move from an API specification, sample payload, or recorded traffic to a fully functional virtual service in minutes. No specialized virtualization expertise is required. No infrastructure needs to be provisioned. No dependency teams need to be involved. The result is faster releases, better test coverage, reduced integration risk, lower operational costs, and a more dependency-free engineering culture.


**Average Rating:** 4.8/5.0
**Total Reviews:** 76

**Who Is the Company Behind Beeceptor?**

- **Seller:** [Beeceptor](https://www.g2.com/sellers/beeceptor)
- **Year Founded:** 2017
- **HQ Location:** Hyderabad, Telangana
- **Twitter:** @beeceptor (171 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/beeceptor/ (6 employees on LinkedIn®)

**Who Uses This Product?**
- **Who Uses This:** Software Developer
- **Top Industries:** Computer Software, Information Technology and Services
- **Company Size:** 51% Small-Business, 25% Mid-Market


#### What Are Beeceptor's Pros and Cons?

**Pros:**

- Ease of Use (35 reviews)
- Speed (15 reviews)
- Easy Setup (14 reviews)
- API Testing (11 reviews)
- Integrations (10 reviews)

**Cons:**

- Missing Features (8 reviews)
- Request Limitations (7 reviews)
- Limited Features (3 reviews)
- UX Improvement (3 reviews)
- Bug Issues (2 reviews)


### What Do G2 Reviewers Say About Beeceptor?
*AI-generated summary from verified user reviews*

**Pros:**

- Users appreciate the **ease of use** of Beeceptor, enabling quick API mocking with minimal setup required.
- Users appreciate the **speedy setup** of Beeceptor, allowing quick API creation and faster development processes.
- Users praise the **easy setup** of Beeceptor, enabling quick mock API creation for efficient development and testing.
- Users commend Beeceptor for its **ease of use and flexible mocking options** , streamlining the API testing process effectively.
- Users appreciate the **seamless integrations** of Beeceptor, enhancing their development process and reducing reliance on external APIs.

**Cons:**

- Users find the **missing features** of Beeceptor limit its flexibility and functionality, especially for specific use cases.
- Users face **request limitations** with Beeceptor, especially when handling heavy testing or complex simulations.
- Users find **limited features** of Beeceptor inadequate for complex API simulations and extensive testing needs.
- Users note that the **UI/UX can be improved** , citing navigation challenges and organizational difficulties with the mocks.
- Users experience **bug issues** with Beeceptor, although some bugs are resolved quickly by the support team.

#### What Are Recent G2 Reviews of Beeceptor?

**"[Effortless API Mocking with Continuous Enhancements](https://www.g2.com/survey_responses/beeceptor-review-12449605)"**

**Rating:** 5.0/5.0 stars
*— Günther W.*

[Read full review](https://www.g2.com/survey_responses/beeceptor-review-12449605)

---

**"[Beeceptor is definitely my top-choice Mock API service for future projects](https://www.g2.com/survey_responses/beeceptor-review-12183648)"**

**Rating:** 4.5/5.0 stars
*— Vũ N.*

[Read full review](https://www.g2.com/survey_responses/beeceptor-review-12183648)

---


#### What Are G2 Users Discussing About Beeceptor?

- [How do I create a dummy REST API?](https://www.g2.com/discussions/beeceptor-how-do-i-create-a-dummy-rest-api)
- [How do I create a dummy REST API?](https://www.g2.com/discussions/how-do-i-create-a-dummy-rest-api)
- [How do I remove Beeceptor endpoint?](https://www.g2.com/discussions/beeceptor-how-do-i-remove-beeceptor-endpoint) - 1 comment
- [What is Beeceptor?](https://www.g2.com/discussions/beeceptor-what-is-beeceptor) - 1 comment
- [How does Beeceptor work?](https://www.g2.com/discussions/beeceptor-how-does-beeceptor-work) - 1 comment

### 5. [Mockoon](https://www.g2.com/products/mockoon-mockoon/reviews)
Mockoon is a powerful, open-source platform designed to streamline API mocking processes. It offers a comprehensive suite of tools tailored to meet the needs of developers, QA engineers, and teams working with APIs. API Mocking Tools Mockoon provides intuitive and robust API mocking tools, enabling users to create, manage, and test API endpoints effortlessly. With Mockoon, you can simulate complex API behaviors, including request/response cycles, latency, and error handling. This ensures that your application can handle real-world scenarios before going live. CLI for Integration Testing Mockoon's Command Line Interface (CLI) facilitates seamless integration testing. The CLI allows you to automate API mock server operations, making it an ideal tool for continuous integration and deployment (CI/CD) pipelines. By integrating Mockoon into your workflow, you can ensure consistent and reliable testing outcomes across various environments. Cloud Services for Team Collaboration and Deployment Mockoon Cloud Services enhance team collaboration and deployment capabilities. With cloud-based solutions, teams can collaborate in real-time, share mock API configurations, and synchronize changes effortlessly. The cloud platform also supports easy deployment of mock servers, ensuring that your team can access and test APIs from anywhere, anytime. Open Source and Community-Driven As an open-source project, Mockoon benefits from a vibrant community of developers and contributors. This ensures continuous improvement, regular updates, and a wide range of features driven by user needs. The open-source nature of Mockoon also means that it is highly customizable, allowing you to tailor it to your specific requirements.


**Average Rating:** 4.5/5.0
**Total Reviews:** 17

**Who Is the Company Behind Mockoon?**

- **Seller:** [Mockoon](https://www.g2.com/sellers/mockoon)
- **Year Founded:** 2017
- **HQ Location:** Luxembourg
- **LinkedIn® Page:** https://www.linkedin.com/company/mockoon (2 employees on LinkedIn®)

**Who Uses This Product?**
- **Top Industries:** Computer Software
- **Company Size:** 41% Small-Business, 35% Enterprise


#### What Are Mockoon's Pros and Cons?

**Pros:**

- Free Usage (2 reviews)
- Open Source (2 reviews)
- Deployment (1 reviews)
- Ease of Use (1 reviews)

**Cons:**

- Learning Curve (1 reviews)
- Poor Documentation (1 reviews)


### What Do G2 Reviewers Say About Mockoon?
*AI-generated summary from verified user reviews*

**Pros:**

- Users love the **free and open-source** nature of Mockoon, appreciating its straightforward setup without account requirements.
- Users value the **free and open-source nature** of Mockoon, making it accessible and easy to use without accounts.
- Users value the **ease of deployment** with Mockoon, enjoying a seamless experience without needing accounts or remote setups.
- Users find Mockoon's **ease of use** appealing, noting its straightforward interface and accessibility as a free, open-source tool.

**Cons:**

- Users note a **slight learning curve** with Mockoon, but find the investment in time worthwhile for its features.
- Users find the **poor documentation** of Mockoon makes it difficult to navigate and fully utilize the product.

#### What Are Recent G2 Reviews of Mockoon?

**"[An essential part of our toolkit](https://www.g2.com/survey_responses/mockoon-review-10296976)"**

**Rating:** 4.0/5.0 stars
*— Carlos V.*

[Read full review](https://www.g2.com/survey_responses/mockoon-review-10296976)

---

**"[Open-Source API Testing Made Effortless](https://www.g2.com/survey_responses/mockoon-review-12454609)"**

**Rating:** 4.5/5.0 stars
*— Emilio G.*

[Read full review](https://www.g2.com/survey_responses/mockoon-review-12454609)

---


#### What Are G2 Users Discussing About Mockoon?

- [What is API mocking?](https://www.g2.com/discussions/what-is-api-mocking)
- [How do I create a mock REST API?](https://www.g2.com/discussions/how-do-i-create-a-mock-rest-api)
- [How do I set up Mockoon?](https://www.g2.com/discussions/how-do-i-set-up-mockoon)
- [What is mockoon?](https://www.g2.com/discussions/what-is-mockoon)

### 6. [WireMock Cloud](https://www.g2.com/products/wiremock-wiremock-cloud/reviews)
WireMock Cloud is AI-native API simulation platform for simulating APIs and services with speed and precision. It enables teams to accelerate development and testing through robust, stateful API simulation, support for REST, SOAP, GraphQL, and gRPC, and alignment with OpenAPI and schema-first workflows. With dynamic request matching, data source stubbing, enterprise-grade controls, Cloud, on-premise or hybrid deployment options, and an intuitive, developer and QA friendly UX, WireMock Cloud replaces legacy service virtualization with a scalable, easy-to-use solution for building and testing integrations faster.


**Average Rating:** 5.0/5.0
**Total Reviews:** 10

**Who Is the Company Behind WireMock Cloud?**

- **Seller:** [WireMock](https://www.g2.com/sellers/wiremock)
- **HQ Location:** Menlo Park, California
- **LinkedIn® Page:** https://www.linkedin.com/company/wiremock/ (12 employees on LinkedIn®)

**Who Uses This Product?**
- **Company Size:** 50% Mid-Market, 30% Enterprise


#### What Are WireMock Cloud's Pros and Cons?

**Pros:**

- Ease of Use (4 reviews)
- Customer Support (3 reviews)
- API Testing (2 reviews)
- Integrations (2 reviews)
- Tools (2 reviews)

**Cons:**

- API Limitations (1 reviews)
- Expensive (1 reviews)
- Limited Community Support (1 reviews)


### What Do G2 Reviewers Say About WireMock Cloud?
*AI-generated summary from verified user reviews*

**Pros:**

- Users praise the **ease of use** of WireMock Cloud, emphasizing quick implementation and effective API testing support.
- Users commend the **excellent customer support** from WireMock, highlighting prompt responses and effective issue resolution.
- Users appreciate the **powerful mocking tools** of WireMock Cloud, enhancing their API development and testing efficiency.
- Users value the **seamless integrations** of WireMock Cloud, enhancing workflows and simplifying API testing processes effectively.
- Users praise WireMock Cloud for its **powerful mocking tools** , enhancing API development and boosting testing confidence.

**Cons:**

- Users find the **admin APIs challenging** to navigate without adequate support, hindering their overall experience.
- Users find WireMock Cloud to be **expensive** , posing challenges for smaller teams with limited budgets.
- Users find the **limited community support** challenging, especially when navigating the admin APIs without direct assistance.

#### What Are Recent G2 Reviews of WireMock Cloud?

**"[Effortless API Mocking](https://www.g2.com/survey_responses/wiremock-cloud-review-11629078)"**

**Rating:** 4.5/5.0 stars
*— Mike D.*

[Read full review](https://www.g2.com/survey_responses/wiremock-cloud-review-11629078)

---

**"[Reliable API Mocking Tool](https://www.g2.com/survey_responses/wiremock-cloud-review-11634670)"**

**Rating:** 5.0/5.0 stars
*— Jussi N.*

[Read full review](https://www.g2.com/survey_responses/wiremock-cloud-review-11634670)

---



### 7. [Broadcom Service Virtualization](https://www.g2.com/products/broadcom-service-virtualization/reviews)
Service Virtualization simulates unavailable systems across the software development lifecycle (SDLC), allowing developers, testers, integration, and performance teams to work in parallel for faster delivery and higher application quality and reliability.


**Average Rating:** 4.3/5.0
**Total Reviews:** 3

**Who Is the Company Behind Broadcom Service Virtualization?**

- **Seller:** [Broadcom](https://www.g2.com/sellers/broadcom-ab3091cd-4724-46a8-ac89-219d6bc8e166)
- **Year Founded:** 1991
- **HQ Location:** San Jose, CA
- **Twitter:** @broadcom (63,909 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/broadcom/ (55,094 employees on LinkedIn®)
- **Ownership:** NASDAQ: CA

**Who Uses This Product?**
- **Company Size:** 67% Enterprise, 33% Small-Business



#### What Are Recent G2 Reviews of Broadcom Service Virtualization?

**"[Catch the defects before it is too late](https://www.g2.com/survey_responses/broadcom-service-virtualization-review-4832773)"**

**Rating:** 4.0/5.0 stars
*— Verified User in Health, Wellness and Fitness*

[Read full review](https://www.g2.com/survey_responses/broadcom-service-virtualization-review-4832773)

---

**"[A tool for developing virtual services](https://www.g2.com/survey_responses/broadcom-service-virtualization-review-9691507)"**

**Rating:** 5.0/5.0 stars
*— Verified User in Program Development*

[Read full review](https://www.g2.com/survey_responses/broadcom-service-virtualization-review-9691507)

---


#### What Are G2 Users Discussing About Broadcom Service Virtualization?

- [What is meant by service virtualization?](https://www.g2.com/discussions/what-is-meant-by-service-virtualization)
- [What are the service virtualization tools?](https://www.g2.com/discussions/what-are-the-service-virtualization-tools)
- [What is the purpose of service virtualization?](https://www.g2.com/discussions/what-is-the-purpose-of-service-virtualization)

### 8. [OpenText Service Virtualization](https://www.g2.com/products/opentext-service-virtualization/reviews)
Micro Focus Service Virtualization is an application simulation software designed to keep users on schedule and focused on service quality.


**Average Rating:** 4.8/5.0
**Total Reviews:** 3

**Who Is the Company Behind OpenText Service Virtualization?**

- **Seller:** [OpenText](https://www.g2.com/sellers/opentext)
- **Year Founded:** 1991
- **HQ Location:** Waterloo, ON
- **Twitter:** @OpenText (21,565 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/2709/ (23,048 employees on LinkedIn®)
- **Ownership:** NASDAQ:OTEX

**Who Uses This Product?**
- **Company Size:** 50% Mid-Market, 50% Small-Business


#### What Are OpenText Service Virtualization's Pros and Cons?

**Pros:**

- Deployment (1 reviews)
- Features (1 reviews)
- Security (1 reviews)



### What Do G2 Reviewers Say About OpenText Service Virtualization?
*AI-generated summary from verified user reviews*

**Pros:**

- Users value the **flexible deployment model** of OpenText Service Virtualization, enabling quick and efficient testing across various platforms.
- Users value the **broad protocol and simulation coverage** of OpenText Service Virtualization, enhancing their testing capabilities significantly.
- Users value the **robust security features** of OpenText Service Virtualization, enhancing data protection and compliance.


#### What Are Recent G2 Reviews of OpenText Service Virtualization?

**"[my experience](https://www.g2.com/survey_responses/opentext-service-virtualization-review-9312755)"**

**Rating:** 5.0/5.0 stars
*— venkata p.*

[Read full review](https://www.g2.com/survey_responses/opentext-service-virtualization-review-9312755)

---

**"[LLD Analysis](https://www.g2.com/survey_responses/opentext-service-virtualization-review-7507893)"**

**Rating:** 5.0/5.0 stars
*— Malini V.*

[Read full review](https://www.g2.com/survey_responses/opentext-service-virtualization-review-7507893)

---



### 9. [MockLab](https://www.g2.com/products/mocklab/reviews)
MockLab is an API simulator that helps software teams test faster and better.


**Average Rating:** 4.7/5.0
**Total Reviews:** 3

**Who Is the Company Behind MockLab?**

- **Seller:** [MockLab](https://www.g2.com/sellers/mocklab)
- **Year Founded:** 2017
- **HQ Location:** Menlo Park, California, United States
- **Twitter:** @mocklab (1 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/wiremock/ (13 employees on LinkedIn®)

**Who Uses This Product?**
- **Company Size:** 67% Mid-Market, 33% Small-Business


#### What Are MockLab's Pros and Cons?

**Pros:**

- API Management (1 reviews)
- Speed (1 reviews)

**Cons:**

- Testing Issues (1 reviews)


### What Do G2 Reviewers Say About MockLab?
*AI-generated summary from verified user reviews*

**Pros:**

- Users value the **performance and mock API capabilities** of MockLab, enhancing development with efficient endpoints and request management.
- Users praise the **high performance** of MockLab, enjoying faster mock REST API creation and request handling.

**Cons:**

- Users feel limited by the **testing issues** in MockLab, as it lacks unit testing capabilities like its competitors.

#### What Are Recent G2 Reviews of MockLab?

**"[Product Specifications](https://www.g2.com/survey_responses/mocklab-review-8370225)"**

**Rating:** 4.5/5.0 stars
*— Shashank  S.*

[Read full review](https://www.g2.com/survey_responses/mocklab-review-8370225)

---

**"[Best Mocking App Ever](https://www.g2.com/survey_responses/mocklab-review-5123977)"**

**Rating:** 5.0/5.0 stars
*— Vishal P.*

[Read full review](https://www.g2.com/survey_responses/mocklab-review-5123977)

---


#### What Are G2 Users Discussing About MockLab?

- [What is MockLab used for?](https://www.g2.com/discussions/what-is-mocklab-used-for)

### 10. [Mocky.io](https://www.g2.com/products/mocky-io/reviews)
The world easiest & fastest tool belts to mock your APIs|


**Average Rating:** 4.0/5.0
**Total Reviews:** 2

**Who Is the Company Behind Mocky.io?**

- **Seller:** [Mocky.io](https://www.g2.com/sellers/mocky-io)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)

**Who Uses This Product?**
- **Company Size:** 50% Mid-Market, 50% Small-Business



#### What Are Recent G2 Reviews of Mocky.io?

**"[Mocky is Really Simple and Easy to Mock API Response](https://www.g2.com/survey_responses/mocky-io-review-8756346)"**

**Rating:** 4.5/5.0 stars
*— Muhammad Z.*

[Read full review](https://www.g2.com/survey_responses/mocky-io-review-8756346)

---



### 11. [Requestly](https://www.g2.com/products/requestly/reviews)
Requestly is a modern and powerful companion for API Development and Testing. It is an open-source tool purpose-built to speed up and simplify API development workflow for developers and QAs. It is a combination of API Client and HTTP Interceptor that helps create and share API Contracts, testing APIs, and easily mock and integrate them into web and mobile apps. Requestly Benefits: ✅ Open Source: Requestly is open-source tools, giving transparency on how we handle your data. ✅ API Client: A modern & privacy-first API Client with all the features like API Collection, Variables, Scripts. ✅ Intercept HTTPS Traffic: Enables you to watch traffic from the mobile app you are developing for testing and debugging. ✅ HTTP Request Modification: Enables network request and response modification to mock different edge cases and scenarios of a real app. ✅ API Mocks: Creates local and cloud based API mocks to develop and isolate testing of an application. ✅ Record & Bulk mocks: Supports recording traffic of an existing service and create mocks in few seconds. ✅ Team Workspaces: Offers flexibility to work with team and share mocks, request modification rules and API contracts with team. ✅ GraphQL Support: Integrates with GraphQL development flows using different set of filters for GraphQL APIs. Learn more at: https://requestly.com/


**Average Rating:** 4.7/5.0
**Total Reviews:** 6

**Who Is the Company Behind Requestly?**

- **Seller:** [Requestly](https://www.g2.com/sellers/requestly)
- **Year Founded:** 2021
- **HQ Location:** San Francisco, US
- **Twitter:** @requestlyio (1,571 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/requestly (11 employees on LinkedIn®)

**Who Uses This Product?**
- **Company Size:** 33% Enterprise, 33% Mid-Market


#### What Are Requestly's Pros and Cons?

**Pros:**

- Cross-Browser Testing (1 reviews)
- Easy Implementation (1 reviews)
- Implementation Ease (1 reviews)
- Setup Ease (1 reviews)
- Time-saving (1 reviews)

**Cons:**

- Complexity (1 reviews)
- Difficult Setup (1 reviews)
- Learning Curve (1 reviews)


### What Do G2 Reviewers Say About Requestly?
*AI-generated summary from verified user reviews*

**Pros:**

- Users value the **easy implementation** of Requestly's Cross-Browser Testing, enabling quick testing without extensive development time.
- Users appreciate the **easy implementation** of Requestly, allowing for quick testing without extensive development time.
- Users appreciate the **implementation ease** of Requestly, finding it quick and efficient to set up and use.
- Users find the **setup ease** of Requestly exceptional, enabling quick and efficient implementation without extensive development time.
- Users appreciate the **time-saving capabilities** of Requestly, allowing efficient testing based on specific rules and conditions.

**Cons:**

- Users find the **setup and rule-building process complex** , which can hinder their initial experience with Requestly.
- Users find the **difficult setup** process challenging, requiring time and effort to create effective rules for testing.
- Users find the **learning curve challenging** , as setup and rule-building can be time-consuming and complex.

#### What Are Recent G2 Reviews of Requestly?

**"[I've been using it since day one.](https://www.g2.com/survey_responses/requestly-review-11463345)"**

**Rating:** 5.0/5.0 stars
*— Volkan Y.*

[Read full review](https://www.g2.com/survey_responses/requestly-review-11463345)

---

**"[Requestly Makes API Mocking and Request Tweaks Fast and Effortless](https://www.g2.com/survey_responses/requestly-review-12978393)"**

**Rating:** 4.5/5.0 stars
*— Ravindra N.*

[Read full review](https://www.g2.com/survey_responses/requestly-review-12978393)

---


#### What Are G2 Users Discussing About Requestly?

- [What is Requestly used for?](https://www.g2.com/discussions/what-is-requestly-used-for)

### 12. [BlazeMeter Continuous Testing Platform](https://www.g2.com/products/blazemeter-continuous-testing-platform/reviews)
BlazeMeter, a comprehensive continuous testing platform that boosts your software delivery speed and quality, specializes in performance testing, functional UI testing, API testing and monitoring, along with AI-driven test data generation and service virtualization. It enables swift and scalable simulations of user activity, ensuring robust performance and seamless functionality across applications. Integrating with CI/CD pipelines for both development and operations, BlazeMeter provides detailed, real-time analytics to optimize performance and meet stringent SLAs. Its service virtualization capabilities allow for uninterrupted testing and agile delivery, establishing it as the ideal solution for high-velocity software development teams focused on delivering superior user experiences. Learn more at blazemeter.com.


**Average Rating:** 4.0/5.0
**Total Reviews:** 24

**Who Is the Company Behind BlazeMeter Continuous Testing Platform?**

- **Seller:** [Perforce](https://www.g2.com/sellers/perforce)
- **Year Founded:** 1995
- **HQ Location:** Minneapolis, MN
- **Twitter:** @perforce (5,090 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/perforce/ (2,034 employees on LinkedIn®)

**Who Uses This Product?**
- **Top Industries:** Information Technology and Services, Computer Software
- **Company Size:** 52% Mid-Market, 36% Enterprise


#### What Are BlazeMeter Continuous Testing Platform's Pros and Cons?

**Pros:**

- Ease of Use (4 reviews)
- Helpful (3 reviews)
- Performance (3 reviews)
- Team Collaboration (3 reviews)
- Testing (3 reviews)

**Cons:**

- Expensive (3 reviews)
- Complexity (1 reviews)
- Data Limitations (1 reviews)
- Inaccuracy (1 reviews)
- Integration Issues (1 reviews)


### What Do G2 Reviewers Say About BlazeMeter Continuous Testing Platform?
*AI-generated summary from verified user reviews*

**Pros:**

- Users appreciate the **ease of use** of BlazeMeter, making testing accessible for developers, QA, and DevOps teams.
- Users appreciate the **helpfulness** of BlazeMeter for seamless testing and excellent customer support across teams.
- Users value the **efficient performance testing** features of BlazeMeter, praising its ease of use and integration capabilities.
- Users appreciate the **team collaboration features** of BlazeMeter, enhancing efficiency among developers, QA, and DevOps teams.
- Users value the **efficiency and ease of use** of BlazeMeter, streamlining the testing process across teams.

**Cons:**

- Users find BlazeMeter **expensive** , suggesting the need for better pricing plans to enhance accessibility.
- Users find the **complex integration** with CI/CD pipelines time-consuming and often requiring extensive troubleshooting.
- Users find the **data limitations** frustrating, particularly with non-ASCII character file compatibility, despite ease of use.
- Users find the platform **inaccurate with non-ASCII characters** , affecting their testing accuracy and experience.
- Users find the **complex integration** with CI/CD pipelines challenging, often requiring time-consuming troubleshooting efforts.

#### What Are Recent G2 Reviews of BlazeMeter Continuous Testing Platform?

**"[Blazemeter: Great for Mobile, Web, and API Testing with Minor Drawbacks](https://www.g2.com/survey_responses/blazemeter-continuous-testing-platform-review-11806038)"**

**Rating:** 5.0/5.0 stars
*— Rohit K.*

[Read full review](https://www.g2.com/survey_responses/blazemeter-continuous-testing-platform-review-11806038)

---

**"[Efficient and Essential tool for Streamlined Testing](https://www.g2.com/survey_responses/blazemeter-continuous-testing-platform-review-11858453)"**

**Rating:** 5.0/5.0 stars
*— Aashish K.*

[Read full review](https://www.g2.com/survey_responses/blazemeter-continuous-testing-platform-review-11858453)

---


#### What Are G2 Users Discussing About BlazeMeter Continuous Testing Platform?

- [What is continuous testing platform?](https://www.g2.com/discussions/what-is-continuous-testing-platform) - 1 comment
- [What is the difference between JMeter and BlazeMeter?](https://www.g2.com/discussions/what-is-the-difference-between-jmeter-and-blazemeter) - 1 comment
- [What is BlazeMeter performance testing?](https://www.g2.com/discussions/what-is-blazemeter-performance-testing) - 1 comment
- [What is BlazeMeter used for?](https://www.g2.com/discussions/what-is-blazemeter-used-for) - 1 comment

### 13. [Hoverfly Cloud](https://www.g2.com/products/hoverfly-cloud/reviews)
Hosted, high-performance, API simulations for your development environment and CI pipeline


**Average Rating:** 4.5/5.0
**Total Reviews:** 1

**Who Is the Company Behind Hoverfly Cloud?**

- **Seller:** [SpectoLabs](https://www.g2.com/sellers/spectolabs)
- **Year Founded:** 2015
- **HQ Location:** Reading, GB
- **LinkedIn® Page:** http://www.linkedin.com/company/hoverfly-cloud (2 employees on LinkedIn®)

**Who Uses This Product?**
- **Company Size:** 100% Small-Business



#### What Are Recent G2 Reviews of Hoverfly Cloud?

**"[Good UI Based tool to create api simulations](https://www.g2.com/survey_responses/hoverfly-cloud-review-10597072)"**

**Rating:** 4.5/5.0 stars
*— ibrahim d.*

[Read full review](https://www.g2.com/survey_responses/hoverfly-cloud-review-10597072)

---



### 14. [IBM DevOps Test Virtualization](https://www.g2.com/products/ibm-devops-test-virtualization/reviews)
IBM DevOps Test Virtualization software enables early and frequent testing in the development lifecycle. It removes dependencies by virtualizing part or all of an application or database so software testing teams don’t have to wait for the availability of those resources to begin. Combined with Integration Tester, you can achieve continuous software testing.


**Average Rating:** 4.5/5.0
**Total Reviews:** 1

**Who Is the Company Behind IBM DevOps Test Virtualization?**

- **Seller:** [IBM](https://www.g2.com/sellers/ibm)
- **Year Founded:** 1911
- **HQ Location:** Armonk, New York, United States
- **Twitter:** @IBMSecurity (74,660 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/1009/ (328,202 employees on LinkedIn®)
- **Ownership:** SWX:IBM

**Who Uses This Product?**
- **Company Size:** 100% Small-Business



#### What Are Recent G2 Reviews of IBM DevOps Test Virtualization?

**"[One single platform to mock ur headless technologies!!](https://www.g2.com/survey_responses/ibm-devops-test-virtualization-review-4243067)"**

**Rating:** 4.5/5.0 stars
*— Harish kumar M.*

[Read full review](https://www.g2.com/survey_responses/ibm-devops-test-virtualization-review-4243067)

---


#### What Are G2 Users Discussing About IBM DevOps Test Virtualization?

- [What is IBM Rational Test Virtualization Server used for?](https://www.g2.com/discussions/what-is-ibm-rational-test-virtualization-server-used-for)

### 15. [Mountebank](https://www.g2.com/products/mountebank/reviews)
mountebank is the first open source tool to provide cross-platform, multi-protocol test doubles over the wire. Simply point your application under test to mountebank instead of the real dependency, and test like you would with traditional stubs and mocks.


**Average Rating:** 4.5/5.0
**Total Reviews:** 1

**Who Is the Company Behind Mountebank?**

- **Seller:** [Mountebank](https://www.g2.com/sellers/mountebank)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)

**Who Uses This Product?**
- **Company Size:** 100% Small-Business



#### What Are Recent G2 Reviews of Mountebank?

**"[Awesome Service Virtualization tool](https://www.g2.com/survey_responses/mountebank-review-10607985)"**

**Rating:** 4.5/5.0 stars
*— ibrahim d.*

[Read full review](https://www.g2.com/survey_responses/mountebank-review-10607985)

---



### 16. [Tricentis Tosca](https://www.g2.com/products/tricentis-tosca/reviews)
Tricentis Tosca provides a unique approach to test automation – one that is AI-powered, codeless, and end-to-end so it can test everything in a complex IT landscape, and ensure business processes work flawlessly – no matter where changes occur. Its 160+ technology support means users can easily combine and orchestrate UI, API, and data testing within the same test case, including combining virtually any enterprise, custom, homegrown and mobile application. With its model-based approach, Tosca enables business, QA and IT teams to create and maintain reusable test assets at speed and scale while boosting test automation rates to 90% from release to release. With Tosca, teams can test 12x faster, increase risk coverage to 85%+ and cut overall testing costs by 40%. Tosca also features Vision AI, a patented deep learning technology that augments UI testing and increases test stability through self-healing. Vision AI recognizes UI objects (hand drawn, documents, or computer screens) including different control types (fields, inputs, tables, buttons, dropdowns, etc.) allowing it to steer objects regardless of the technical underlayer. Vision AI extends UI automation to various use cases such as automating mockup designs for extreme shift-left testing, and apps running on remote desktops (Citrix), including legacy and modern apps that require heavy test customization. Tosca also features risk optimization, service virtualization, test data management, and smart test case design, making it a comprehensive continuous testing tool.


**Average Rating:** 4.3/5.0
**Total Reviews:** 62

**Who Is the Company Behind Tricentis Tosca?**

- **Seller:** [Tricentis](https://www.g2.com/sellers/tricentis)
- **Year Founded:** 2007
- **HQ Location:** Vienna, Austria
- **Twitter:** @Tricentis (12,931 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/656215/ (1,676 employees on LinkedIn®)

**Who Uses This Product?**
- **Top Industries:** Information Technology and Services, Computer Software
- **Company Size:** 53% Enterprise, 28% Small-Business


#### What Are Tricentis Tosca's Pros and Cons?

**Pros:**

- Automation (4 reviews)
- Automation Support (3 reviews)
- Automation Ease (2 reviews)
- Ease of Learning (2 reviews)
- Ease of Use (2 reviews)

**Cons:**

- Poor Customer Support (2 reviews)
- Browser Compatibility (1 reviews)
- Difficulty (1 reviews)
- Integration Issues (1 reviews)
- Learning Curve (1 reviews)


### What Do G2 Reviewers Say About Tricentis Tosca?
*AI-generated summary from verified user reviews*

**Pros:**

- Users appreciate the **no-code automation** capabilities of Tricentis Tosca, enabling easy automation without coding knowledge.
- Users value the **no-code automation** feature of Tricentis Tosca, making automation accessible and easy to implement.
- Users find **automation easy** with Tricentis Tosca, appreciating its user-friendly interface and maintainable scripts.
- Users value the **ease of learning** with Tricentis Tosca, finding it accessible even for those with limited technical skills.
- Users appreciate the **ease of use** of Tricentis Tosca, enabling effortless automation without coding expertise.

**Cons:**

- Users express frustration over the **poor customer support** from Tricentis, which hampers issue resolution and user experience.
- Users find **browser compatibility lacking** , making cross-environment testing challenging and complicating the execution summary process.
- Users find **automation difficulty** with Tricentis Tosca due to limitations with the tech stack and taskbar functionality.
- Users find **integration with third-party tools challenging** , leading to complications in workflow and usability.
- Users face a challenging **learning curve** with Tricentis Tosca, compounded by limited support for emerging technologies.

#### What Are Recent G2 Reviews of Tricentis Tosca?

**"[QA Engineer](https://www.g2.com/survey_responses/tricentis-tosca-review-9753517)"**

**Rating:** 4.5/5.0 stars
*— ipsita a.*

[Read full review](https://www.g2.com/survey_responses/tricentis-tosca-review-9753517)

---

**"[No-Code Automation Powers Diverse Applications](https://www.g2.com/survey_responses/tricentis-tosca-review-12334108)"**

**Rating:** 4.5/5.0 stars
*— diksha c.*

[Read full review](https://www.g2.com/survey_responses/tricentis-tosca-review-12334108)

---


#### What Are G2 Users Discussing About Tricentis Tosca?

- [What is Tricentis Tosca used for?](https://www.g2.com/discussions/what-is-tricentis-tosca-used-for) - 1 comment
- [How much does Tricentis Tosca cost?](https://www.g2.com/discussions/how-much-does-tricentis-tosca-cost) - 3 comments
- [Is Tricentis Tosca open source?](https://www.g2.com/discussions/is-tricentis-tosca-open-source) - 2 comments
- [Why is Tosca Tricentis?](https://www.g2.com/discussions/why-is-tosca-tricentis) - 1 comment
- [What is Tricentis Tosca server?](https://www.g2.com/discussions/what-is-tricentis-tosca-server) - 2 comments

### 17. [Antithesis](https://www.g2.com/products/antithesis/reviews)
Antithesis is a continuous reliability platform that autonomously searches for problems in your software within a simulated environment. Every problem we find can be perfectly reproduced, allowing for efficient debugging of even the most complex problems.



**Who Is the Company Behind Antithesis?**

- **Seller:** [Antithesis](https://www.g2.com/sellers/antithesis)
- **HQ Location:** Vienna, Virginia, United States
- **LinkedIn® Page:** https://www.linkedin.com/company/antithesis-operations (94 employees on LinkedIn®)






### 18. [Cavisson NetOcean](https://www.g2.com/products/cavisson-netocean/reviews)
Cavisson’s performance testing, monitoring, and diagnostics software helps enterprises maximize up-time and optimize server response time for seamless transactions and exceptional buying experiences.



**Who Is the Company Behind Cavisson NetOcean?**

- **Seller:** [Cavisson Systems](https://www.g2.com/sellers/cavisson-systems)
- **Year Founded:** 2011
- **HQ Location:** Santa Clara, US
- **Twitter:** @CavissonSystems (195 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/450651 (390 employees on LinkedIn®)






### 19. [FIXSIM](https://www.g2.com/products/fixsim/reviews)
FIXSIM is a browser-based FIX protocol simulator and automated testing platform built for QA engineers, developers, and integration teams at broker-dealers, buy-side firms, OMS/EMS vendors, exchanges, and fintech companies. In production since 2012, FIXSIM eliminates the need for live counterparties during FIX connectivity testing, certification, and regression validation. Unlike traditional on-premise tools, FIXSIM requires no software installation, no VPN, and no infrastructure setup. Teams connect directly from a browser using TLS-encrypted sessions and can begin testing FIX order flow within minutes. This makes it practical for globally distributed teams, remote QA engineers, and contractors who need immediate access to a reliable FIX testing environment without waiting for IT provisioning. FIXSIM acts as a FIX counterparty — initiator, acceptor, or both simultaneously — to simulate the full range of trading scenarios: order fills, partial fills, cancels, rejects, replaces, and session recovery. It supports all major FIX versions from FIX 4.0 through FIX 5.0SP2, making it suitable for firms working across legacy and modern trading infrastructure. For manual testing, the platform provides real-time message blotter and session views for inspecting live FIX message flows, order state, and execution reports. Engineers can send individual messages, trigger order actions, and observe the full session lifecycle in real time. This is particularly valuable during initial integration work, debugging, and client onboarding certification where visibility into message-level detail matters. For automated testing, the Rule Builder creates deterministic, repeatable test scenarios that respond automatically to incoming FIX messages. Teams define rules that simulate venue behavior — automatic fills on New Order Singles, conditional rejects, partial execution sequences, and more — enabling zero-touch regression testing that runs consistently without manual intervention. This makes it straightforward to validate that OMS and EMS order state machines behave correctly after code changes. For teams running CI/CD pipelines, the FIXSIM REST API provides programmatic control over sessions, message injection, and scenario execution. Development and QA teams use the API to trigger FIX test scenarios directly from build pipelines, ensuring that FIX connectivity and business logic are validated automatically on every release. FIXSIM is used by broker-dealers certifying client FIX connectivity before go-live, buy-side firms validating OMS and EMS integrations, OMS and EMS software vendors testing order routing logic, exchanges and ECNs stress testing FIX market access, and fintech teams integrating FIX for the first time. The platform supports high-volume stress testing to validate system behavior under sustained FIX message throughput, and multi-user access allows entire QA teams to work within a single firm account. FIXSIM is a cloud-hosted SaaS product operated by Gamma Three Trading, LLC, based in Boston, Massachusetts. Gamma Three Trading is a member of the FIX Trading Community, the non-profit standards body responsible for the FIX protocol specification. The platform processes over 1,000 FIX sessions and 2 million FIX messages daily, maintains 99.9% uptime, and offers a 7-day free trial with no credit card required. Subscriptions are month-to-month with no annual contracts.



**Who Is the Company Behind FIXSIM?**

- **Seller:** [Gamma Three Trading](https://www.g2.com/sellers/gamma-three-trading)
- **Year Founded:** 2010
- **HQ Location:** Boston, US
- **LinkedIn® Page:** https://www.linkedin.com/company/gamma-three-trading/ (1 employees on LinkedIn®)






### 20. [Mockintosh](https://www.g2.com/products/mockintosh/reviews)
Mocks for microservice environments



**Who Is the Company Behind Mockintosh?**

- **Seller:** [Mockintosh](https://www.g2.com/sellers/mockintosh)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)






### 21. [Testfully](https://www.g2.com/products/testfully/reviews)
Testfully is a comprehensive API development platform designed to streamline the creation, testing, and monitoring of APIs. It offers a suite of tools that enhance productivity and ensure the reliability of APIs throughout their lifecycle. With both cloud-based and offline capabilities, Testfully caters to diverse development environments, providing flexibility and security for teams of all sizes. Key Features and Functionality: - API Client: Facilitates seamless interaction with RESTful and GraphQL APIs through a user-friendly request editor. Features include customizable authentication, parameter management, and support for scripts using modern JavaScript. Users can choose between cloud storage or local control for their data, ensuring adaptability to various workflows. - API Testing: Enables efficient, automated testing without the need for coding. Features such as folder runners allow for simultaneous execution of multiple requests, while no-code testing capabilities facilitate response validation and contract testing. Request chaining supports the creation of realistic end-user scenarios, enhancing the depth of testing. - API Monitoring: Provides continuous health checks and functional testing to maintain API performance. Users can reuse existing requests for monitoring purposes, receive notifications through various channels, and access comprehensive histories of past runs to diagnose and resolve issues promptly. - Offline Capability: Offers a fully offline and air-gapped API development toolkit, allowing developers to work without cloud dependencies. This feature is particularly beneficial for environments with strict security requirements. - Desktop Applications: Provides desktop apps for Windows, Mac, and Linux, ensuring a consistent user experience across platforms. These applications support the same functionalities as the web app and are recommended for scenarios involving self-signed SSL certificates or APIs without CORS configuration. Primary Value and User Solutions: Testfully addresses the challenges of API development by offering an integrated platform that simplifies the processes of building, testing, and monitoring APIs. Its no-code testing capabilities make advanced API testing accessible to non-programmers, while the flexibility of cloud and offline options ensures adaptability to various security and operational requirements. By automating repetitive tasks and providing robust monitoring tools, Testfully enhances productivity and ensures the reliability of APIs, allowing development teams to focus on delivering high-quality software solutions.



**Who Is the Company Behind Testfully?**

- **Seller:** [Testfully](https://www.g2.com/sellers/testfully)
- **Year Founded:** 2020
- **HQ Location:** Sydney, AU
- **LinkedIn® Page:** https://www.linkedin.com/company/testfully/ (3 employees on LinkedIn®)






### 22. [Traffic Parrot](https://www.g2.com/products/traffic-parrot/reviews)
Traffic Parrot provides API and service simulation, service virtualization and API mocking software and consulting services to both startups and established e-commerce and financial institutions.



**Who Is the Company Behind Traffic Parrot?**

- **Seller:** [Traffic Parrot](https://www.g2.com/sellers/traffic-parrot)
- **Year Founded:** 2016
- **HQ Location:** London, GB
- **LinkedIn® Page:** https://www.linkedin.com/company/traffic-parrot/ (2 employees on LinkedIn®)







## What Is Service Virtualization Software?

[Development Software](https://www.g2.com/categories/development)

## What Software Categories Are Similar to Service Virtualization Software?

- [Software Testing Tools](https://www.g2.com/categories/software-testing)