# Mockoon Reviews **Vendor:** Mockoon **Category:** [API Mocking Software](https://www.g2.com/categories/api-mocking) **Average Rating:** 4.5/5.0 **Total Reviews:** 17 ## About Mockoon 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. ## Mockoon Pros & Cons **What users like:** - Users enjoy the **free and open-source** nature of Mockoon, appreciating its straightforward usability without account requirements. (2 reviews) - Users love that Mockoon is **free and open-source** , making it straightforward and accessible without any account needed. (2 reviews) - Users value the **easy deployment** of Mockoon, enjoying its free, open-source nature without the need for accounts. (1 reviews) - Users appreciate the **ease of use** of Mockoon, enjoying its straightforward functionality and open-source nature. (1 reviews) **What users dislike:** - Users note a **slight learning curve** with Mockoon, but find it manageable due to its extensive features. (1 reviews) - Users find the **poor documentation** hindered their experience with Mockoon, lacking necessary user guidance and resources. (1 reviews) ## Mockoon Reviews ### 1. Open-Source API Testing Made Effortless **Rating:** 4.5/5.0 stars **Reviewed by:** Emilio G. | Python developer, Enterprise (> 1000 emp.) **Reviewed Date:** March 09, 2026 **What do you like best about Mockoon?** I like that Mockoon is open source and free, so I don't need to sign up for an account and re-login many times. The app is not overloaded and seems pretty responsive, so it doesn't slow down my work. It's fast and doesn't have the annoying logouts and lags that I experienced with other tools. **What do you dislike about Mockoon?** Maybe small parts of UI can be improved, like better tooltips. Maybe improving documentation may help too **What problems is Mockoon solving and how is that benefiting you?** I use Mockoon for mocking and testing APIs. It helps me design and validate REST APIs, allowing me to play around and see how well my design holds in testing. ### 2. An essential part of our toolkit **Rating:** 4.0/5.0 stars **Reviewed by:** Carlos V. | Founder, Small-Business (50 or fewer emp.) **Reviewed Date:** September 24, 2024 **What do you like best about Mockoon?** No remote deployment, no account required, free and open-source. **What do you dislike about Mockoon?** It has a slight learning curve but it is obvious as it is such a feature rich tool. I'd say that this curve is worth it. **What problems is Mockoon solving and how is that benefiting you?** The fact that we can create mock apis, play around with edge cases and pre-visualize our concepts prior to pulling other team members is benefitial. We use mockoon also as part of our mockup presentations, it works great. ### 3. Easiest tool to mock REST APIs **Rating:** 5.0/5.0 stars **Reviewed by:** Sakshi K. | Senior QA Engineer - Performance, Mid-Market (51-1000 emp.) **Reviewed Date:** April 14, 2023 **What do you like best about Mockoon?** The tool is pretty straightforward; the best part is it's free and open-source. **What do you dislike about Mockoon?** It's good overall, but the only thing is very few user-experience documents available on the internet. **What problems is Mockoon solving and how is that benefiting you?** Mockoon is a free, easy-to-use tool for API mocking. With Mockoon, we can quickly mock third-party API calls locally for REST API testing. As API engineers, it saves us a lot of time and energy while doing testing. These third-party API calls take a lot of time, so testing our in-house APIs becomes a task, and so mocking ensures a fixed response time. In short, mockoon provides this medium to mock those third-party calls taking too long. ### 4. A must have for every backend developer **Rating:** 4.0/5.0 stars **Reviewed by:** Muhammad Saad H. | Application Development Analyst, Information Technology and Services, Mid-Market (51-1000 emp.) **Reviewed Date:** November 23, 2022 **What do you like best about Mockoon?** Mockoon is really useful for mocking APIs quickly and easily. It can create an unlimited number of mock APIs and routes. It can create multiple mock responses for each API endpoint if the user does not have access to the remote server's API. **What do you dislike about Mockoon?** The user interface can be intimidating for first-time users, but once the user gets the hang of it, it will save a lot of time to create APIs, especially for backend developers. **What problems is Mockoon solving and how is that benefiting you?** Mockoon helps developers to reduce the time to create APIs by providing a tool to test and simulate APIs. This is useful if the remote server is not available for testing. ### 5. Useful mock REST Apis creation software! **Rating:** 4.5/5.0 stars **Reviewed by:** Shubham S. | Technical Director, Enterprise (> 1000 emp.) **Reviewed Date:** August 11, 2022 **What do you like best about Mockoon?** Mockoon is completely free to use unlike many other applications in the market to test the REST Apis without deployment of the application which needs to be created. **What do you dislike about Mockoon?** Mockoon does not have a very good-looking user interface and sometimes it becomes difficult for a developer who is new to the field of APIs to use it. It also takes a lot of time sometimes to create a new environment. **What problems is Mockoon solving and how is that benefiting you?** We create a lot of APIs for the fintech products that are created and these APIs are tested using Mockoon before the deployment. Hence, this application is a very useful tool for fintech serving companies like us. ### 6. One of the best API mocking tool available right now! **Rating:** 4.0/5.0 stars **Reviewed by:** Arjun R. | Associate Software Developer, Small-Business (50 or fewer emp.) **Reviewed Date:** June 08, 2022 **What do you like best about Mockoon?** Easy setup and initial configuration really help create easy simulated API calls for REST API testing. It helps in easily creating complex API call scenarios. And a ton of customizable features. This is one of the best API tools an API engineer needs to have. **What do you dislike about Mockoon?** Even though it is an open-source project, the contribution is slightly low compared to others. The CLI feature is not yet released yet. Otherwise, this is an incredible tool! **Recommendations to others considering Mockoon:** Easy.Efficient and Free. **What problems is Mockoon solving and how is that benefiting you?** Mockoon is a free, easy-to-use tool for API mocking. With Mockoon, we can easily mock/simulate API calls locally for REST API testing. As an API engineer, it is one of the best free tools for API mocking available in the market. ### 7. Very handy while developing applications for efficient integration of front-end and back-end parts **Rating:** 5.0/5.0 stars **Reviewed by:** Sanket M. | Media Lead - CodeChef CGC Chapter, Small-Business (50 or fewer emp.) **Reviewed Date:** February 10, 2022 **What do you like best about Mockoon?** Mockoon is very helpful for front-end developers to integrate and ensure compatibility of their projects with the back-end being developed. The application gives a lot of customizability for creating Mock APIs for testing the functionality of our application as per the requirements and schemas followed. **What do you dislike about Mockoon?** The software doesn't have much to dislike; however, it can consume quite a bit of memory if left running for a while. However, the effect on performance can be improved by efficient planning of requirements and APIs to execute. **Recommendations to others considering Mockoon:** If you build an application where different teams are creating other parts of the project simultaneously, this software will save a lot of hassle and time. **What problems is Mockoon solving and how is that benefiting you?** I used Mackoon a few months ago while working on a Vue.js project as a participant in a Hackathon. In a restricted environment where building the project in a constrained time is very important, it helps a lot by creating mock APIs while actual APIs are being developed. ### 8. I have been using Mockoon for the last year and it's been amazing. **Rating:** 5.0/5.0 stars **Reviewed by:** Nuno A. | Frontend Developer, Small-Business (50 or fewer emp.) **Reviewed Date:** May 18, 2022 **What do you like best about Mockoon?** Overall I like everything that Mookon provides but the feature that I like the most is the fact we can have multiple responses for the same request and it's very intuitive to create and simple. **What do you dislike about Mockoon?** To be really honest I don't have anything to dislike, it is an excellent product that does very well what it's supposed to do. **What problems is Mockoon solving and how is that benefiting you?** I'm a frontend developer, so sometimes the backend is not ready and Moockon solves this problem, basically, I simulate the requests from the backend with Moockon and because of that I never need to wait for the backend. ### 9. Best Tool to Create API Quickly With Using Advanced Features **Rating:** 5.0/5.0 stars **Reviewed by:** Ruchira S. | Website Developer, Mid-Market (51-1000 emp.) **Reviewed Date:** November 09, 2021 **What do you like best about Mockoon?** Mockoon is a simple and easy to use mock API server for developers who want to test their applications in a faster and more realistic way. It's mainly designed for testing HTTP requests but can also serve static files. It's the quickest way for creating your mocks, but it also has other useful features, like proxy mode, file serving and templating. **What do you dislike about Mockoon?** Mockoon is the quickest way to mock our APIs. It's fast and easy to use, and allows us to create mock APIs in seconds. mockoon helps to run our own mock server that will intercept any request thrown at it and return a pre-defined response. No need to manually refresh our responses when updating our backend, mockoon will do this for usautomatically. **Recommendations to others considering Mockoon:** It is built with Node.js and provides a command line interface that can be used to interact with a mock server just as you would a real one. The core feature of mockoon is to allow us to create mock APIs by HTTP request without any complicated configurations **What problems is Mockoon solving and how is that benefiting you?** Mockoon is an API mocking and testing solution that can save our hours of development time. mockoon allows us to quickly create mock APIs and route requests to them through a single command line interface, saving time and money when developing complicated restful applications.  Mock our servers APIs, anywhere! mockoon is an all-in-one toolkit that lets quickly and easily mock endpoints by setting HTTP response headers to match the response We want. Simply write a route in a yaml file, and run it with the CLI or docker image. Once running, it will automatically send CORS headers and serve files from the local filesystem. And since it’s written in Go, We can rest assured that it can handle anything you throw at it. ### 10. Fastest REST API Creator **Rating:** 5.0/5.0 stars **Reviewed by:** Jayanth T. | Software Engineer, Enterprise (> 1000 emp.) **Reviewed Date:** January 20, 2022 **What do you like best about Mockoon?** I admire how Mockoon helps in crafting flawless APIs within seconds. I use it to run the APIs locally, and it is incredibly swift and easy to configure all the required settings. **What do you dislike about Mockoon?** I have nothing to dislike in Mockoon as per my usage. I have not faced any problems using and configuring this tool until date. I would like to see improvements in support. **What problems is Mockoon solving and how is that benefiting you?** I started using this tool to run complex REST APIs locally for many of my development projects work along. This tool is providing me benefits of speed and improved productivity. ### 11. For REST API MOCKS ,MOCKOON IS THE BEST **Rating:** 5.0/5.0 stars **Reviewed by:** Aravind T. | Associate Technical Lead, Enterprise (> 1000 emp.) **Reviewed Date:** January 26, 2022 **What do you like best about Mockoon?** If you are using REST API and need a mock of it best go to tool is MOCKOON , no account creation and it's free and open source .It saves a lot of time writing boiler plate code. **What do you dislike about Mockoon?** It's good so far no dislikes for now , everything works perfectly. **What problems is Mockoon solving and how is that benefiting you?** I have been using it to mock Rest API before I actually implement the main logic , it helps me for documentation and handshake with UI team so work gets done quicker . ### 12. Solid tool for Abstract Programming Interface (API) design **Rating:** 4.5/5.0 stars **Reviewed by:** Vikas B. | Student, Small-Business (50 or fewer emp.) **Reviewed Date:** October 01, 2021 **What do you like best about Mockoon?** I like the ability to set constraints on what each API can accept and customize GET, POST, DEL, and FETCH endpoint type requests. It visualizes what you input very nicely and makes it aesthetically pleasing to use for API design development. **What do you dislike about Mockoon?** It does not support features to visualize the input and output data of each API endpoint you make. This is a pretty essential feature in the API software engineering process, so it is missing key feature. **What problems is Mockoon solving and how is that benefiting you?** I am solving the problem of needing to design API for software engineering practices. I have realized the benefits of having a desktop app to create design and mock ups for the backend of my web applications. This includes API endpoints (.../'endpointurl'), and lets you visualize how they can be interacted with (GET, POST most commonly). ### 13. Best way to mock apis **Rating:** 5.0/5.0 stars **Reviewed by:** Michalis K. | S, Enterprise (> 1000 emp.) **Reviewed Date:** November 24, 2021 **What do you like best about Mockoon?** Developer experience is great. It was a peace of cake to mock api calls and using different rules we can test edge error cases. Also the import export as file helps a lot with sharing mock apis **What do you dislike about Mockoon?** The rules are a little bit buggy and need refactoring. I think that there are missing priorities there. Which rule has the first priority etc **What problems is Mockoon solving and how is that benefiting you?** Testing error cases for an api. Mocking data. Work even when the server is down. ### 14. Great software for local development **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Mid-Market (51-1000 emp.) **Reviewed Date:** January 14, 2022 **What do you like best about Mockoon?** * Simple interface. * Good feature documentation. no support required **What do you dislike about Mockoon?** * Ability to export API docs should be a great feature. * ability to do proxy pass should be a great feature **What problems is Mockoon solving and how is that benefiting you?** To fast track API development. UI team don't need to wait for real APIs. ### 15. Review for Mockoon **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Enterprise (> 1000 emp.) **Reviewed Date:** October 11, 2021 **What do you like best about Mockoon?** The mock API creation lets me establish a connection between 2 endpoints and let's testing for connections very simple **What do you dislike about Mockoon?** Installing packages to run the application can sometimes be tough when I have to switch systems to work on **What problems is Mockoon solving and how is that benefiting you?** I don't really need to rely on any technical expertise to build the required APIs ### 16. Easy open source platform to run apis **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** October 21, 2021 **What do you like best about Mockoon?** Can run apis directly in seconds without seting up servers **What do you dislike about Mockoon?** Sometimes it's slower in performance also as it's mock servers that's why doesn't support everything **What problems is Mockoon solving and how is that benefiting you?** We use it to create quick mock apis for our projects ### 17. Easy to use and free, I love it **Rating:** 5.0/5.0 stars **Reviewed by:** Jessica T. | Founder, Small-Business (50 or fewer emp.) **Reviewed Date:** January 02, 2021 **What do you like best about Mockoon?** Mockoon is 100% free and that's obviously a huge plus. **What do you dislike about Mockoon?** Until recently, Mockoon lacked a CLI but it's been added in a recent update which is even what motivated me to give it a review. **What problems is Mockoon solving and how is that benefiting you?** Mockoon allows me to run mock APIs, for free ## Mockoon Discussions - [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) - [View Mockoon pricing details and edition comparison](https://www.g2.com/products/mockoon-mockoon/reviews?section=pricing&secure%5Bexpires_at%5D=2026-06-11+10%3A22%3A47+-0500&secure%5Bsession_id%5D=03cc25f7-dbb5-4a09-b821-dc412e618b7e&secure%5Btoken%5D=b24f74692cf1249be64a8b6e6b878f4c3fbb270378f1f283b339dc828e9f5785&format=llm_user) ## Mockoon Features **Functionality** - Test Coverage - System Capture - False Positives - Simulation Quality **Functionality - API Mocking** - Customization - API Protocol Support - Network Simulation **Usability ** - Remediation Suggestions - Collaboration - Ease of Configuration **User Experience - API Mocking** - Collaboration - Integration - Documentation ## Top Mockoon Alternatives - [Postman](https://www.g2.com/products/postman/reviews) - 4.6/5.0 (1,739 reviews) - [Apidog](https://www.g2.com/products/apidog/reviews) - 4.9/5.0 (214 reviews) - [WireMock Cloud](https://www.g2.com/products/wiremock-wiremock-cloud/reviews) - 5.0/5.0 (10 reviews)