head to head · open source
Insomnia vs product-apim
Insomnia has 40,111 GitHub stars, 2,388 forks, 874 open issues and last shipped yesterday. product-apim has 1,042 stars, 958 forks, 651 open issues and last shipped yesterday. Insomnia leads on adoption by 3,749% (40,111 vs 1,042 stars). Insomnia is written in TypeScript under Apache-2.0; product-apim is written in Java under Apache-2.0. Insomnia has attracted 6% as many forks as stars, product-apim 92%. Insomnia was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Insomnia | product-apim | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 1.0K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | Java |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.4K | ⑂ 958 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Insomnia if
- You weight community size — 40K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick product-apim if
- You want the product-apim feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and product-apim fits your workflow better
About Insomnia
Insomnia API Client Insomnia is an open source, cross platform API client for GraphQL, REST, WebSockets, Server Sent Events (SSE), gRPC and any other HTTP compatible protocol. With Insomnia you can: Debug APIs using the most popular protocols and formats. Design APIs using the native OpenAPI editor and visual preview. Test APIs using native test suites and collection runner. Mock APIs using a cloud or self hosted mocking server. Build CI/CD pipelines using the native Insomnia CLI for linting and testing. Collaborate with others using the many collaboration features. And more including the ability to use 3rd…
read the full Insomnia overview →
About product-apim
WSO2 API Manager WSO2 API Manager is a complete platform for building, integrating, and exposing your digital services as managed APIs in the cloud, on premise, and hybrid architectures to drive your digital transformation strategy. It allows API developers to design, publish, and manage the lifecycle of APIs and API product managers to create API products from one or more APIs. To learn more about WSO2 API Manager please visit If you run your workloads on Kubernetes, we recommend you check our specific solution for the Kubernetes platform Why WSO2 API Manager? From simple scenarios to comprehensive protocol…
read the full product-apim overview →
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Frequently asked questions
Is Insomnia or product-apim more popular?
Insomnia has 40,111 GitHub stars and product-apim has 1,042. Insomnia has the larger community by that measure.
Are Insomnia and product-apim free?
Both are open source. Insomnia is licensed under Apache-2.0 and product-apim under Apache-2.0. Neither carries a licence fee.
What is the difference between Insomnia and product-apim?
Insomnia is written in TypeScript and product-apim in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Insomnia or product-apim?
Choose Insomnia if you want the larger community (40,111 stars) or its Apache-2.0 licence terms. Choose product-apim if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.