Kong Insomnia Reviews & Product Details

Build APIs that work. Deliver high quality APIs through standards and collaboration with the Insomnia API development platform. Open Source API Client There is a reason developers love Insomnia. With our streamlined API client, you can quickly and easily send HTTP, REST, gRPC, GraphQL, Websockets, SOAP, and SSE requests directly within Insomnia. Native API design and mocking Build consistently reliable APIs with Insomnia. Validate OpenAPI specs through real-time linting and simulate functionality using secure mock servers — locally or in the cloud. Centralize and Automate Tests Create comprehensive API tests for every collection with pre-request and after-response scripting. Use the Collection Runner to execute unlimited test runs and detect any breaking changes. Use the Inso CLI to unlock CI/CD automation and integrate with your CI/CD process to build out an API testing pipeline. Accelerate development with AI With the AI Runner, available on all Insomnia plans, developers can write code once and easily consume all of the LLMs supported by the Kong AI Gateway. Develop APIs more efficiently and securely with AI semantic caching and key security guardrails available out-of-the-box.

Seller

Kong Inc

Discussions

Kong Insomnia Community

Overview by

Taylor Page

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Yegor L.

Quality Assurance Consultant

Enterprise (> 1000 emp.)

3/11/2026

"Insomnia: Open Source, Secure, and Flawlessly Functional"

5/5

What do you like best about Kong Insomnia?

Insomnia is great for multiple reasons. Most of them are open source, security and flawless functionality. Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

Some UI elements and components can not be collapsed, which limits user navigation on smaller screens. Review collected by and hosted on G2.com.

Carlos S.

CPO

Small-Business (50 or fewer emp.)

12/13/2025

"Efficient for API Testing, But Expensive"

4.5/5

What do you like best about Kong Insomnia?

I like the ease of use and collaboration in Kong Insomnia. I find it very agile and it has shortcuts that make it efficient for testing internal APIs or when I'm doing an integration. Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

The price is a bit high for what they offer, which is just sharing; there are no open-source options. Review collected by and hosted on G2.com.

Verified User in Banking

Enterprise (> 1000 emp.)

9/30/2025

"Senior Software Engineer"

3.5/5

What do you like best about Kong Insomnia?

One of the best platform to do testing of APIs and check the error logs against request Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

UI is bit different the other platforms so new user getting difficulties Review collected by and hosted on G2.com.

Verified User in Computer Software

Small-Business (50 or fewer emp.)

4/14/2025

"Really horrendous product"

0.5/5

What do you like best about Kong Insomnia?

Not anything in particular comes to mind Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

- Way too limited org options

- Continously logged out and forced to reenable various crap

- Error messages are terrible and clearly not thought of - e.g. json parse errors in requests

- Bad UI

- Bad and cumbersome git integrations Review collected by and hosted on G2.com.

Sumit T.

Product Verification Engineer

Small-Business (50 or fewer emp.)

4/18/2024

"Manual API testing Tool"

3.5/5

What do you like best about Kong Insomnia?

Simple to use for the Fresher and learn about Rest APIs

Some times Postman is confusing while using for Pre Test and Tests No extra steps or confusion. Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

We cannot create Automation suite or write tests like we can do it on Postman.

Websocket support is not available.

Mocking is also not allowed Review collected by and hosted on G2.com.

Krishna S.

Senior Software Engineer

Consulting

Mid-Market (51-1000 emp.)

6/6/2024

"Insomnia great tool to use"

5/5

What do you like best about Kong Insomnia?

I am using insomnia in my current project so have my workflow i.e kong deplyment.

I have created collection and multiple test cases in insomnia and then connect it with git to pass all the test cases and it work smoothly I realy like this functionality of insomnia.

We can easily implemen multiple test cases. Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

kong insomnia is not very much scalable. Review collected by and hosted on G2.com.

Carlos V.

CTO

Entertainment

Small-Business (50 or fewer emp.)

8/23/2023

"The API swiss tool"

4.5/5

What do you like best about Kong Insomnia?

It is open source and it is well documented.

Has good coverage of different authentication modes, and environment variables. One of the best things is the code generation for the calls. Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

To unlock some features, like team collaboration, you need to have a paid plan. Review collected by and hosted on G2.com.

Zin M.

Mid-Market (51-1000 emp.)

8/29/2023

"A Strong Tool with Some Room for Development"

4/5

What do you like best about Kong Insomnia?

I think it very easy to use like for create and save workspace , import and export requests and to debug requests.And Insomnia supported a wide range of features, including REST, GraphQL, and SOAP requests, which made it a versatile tool that I could use for a variety of projects. Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

I think the documentation is not as comprehensive as I would like so that is too difficult to find information I need.And the application's performance can be slow when i working with l requests. Review collected by and hosted on G2.com.

Alberto G.

Software Engineer

Computer Software

Small-Business (50 or fewer emp.)

5/11/2023

"Clean and peaceful user interface"

5/5

What do you like best about Kong Insomnia?

What I most like about Insomnia is its user interface. You don't feel burdened by hundreds of options or buttons. Most things are easy to find, and the distribution of Request's List, Request Body, and Response Body are lovely and understandable, especially on small screens. Review collected by and hosted on G2.com.

What do you dislike about Kong Insomnia?

What I dislike about Insomnia is that it doesn't have a free tier and doesn't support as much automation as Postman. Apart from that, it is an excellent REST client. Review collected by and hosted on G2.com.

What problems is Kong Insomnia solving and how is that benefiting you?

I have used it for about five years and still love it. I used it to test and debug APIs, to group my resources, and export them so I could import them later. I used it to share the collections with other programmers, but that company stopped paying for it because not many people used it. Review collected by and hosted on G2.com.