head to head · open source
Insomnia vs aimock
Insomnia has 40,021 GitHub stars, 2,365 forks, 874 open issues and last shipped yesterday. aimock has 930 stars, 71 forks, 1 open issues and last shipped yesterday. Insomnia leads on adoption by 4,203% (40,021 vs 930 stars). Insomnia is written in TypeScript under Apache-2.0; aimock is written in TypeScript under MIT. Insomnia has attracted 6% as many forks as stars, aimock 8%. aimock 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 | aimock | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 930 |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.4K | ⑂ 71 |
| 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 aimock if
- You want the aimock feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and aimock fits your workflow better
About Insomnia
Insomnia is an open source, cross platform API client built with Electron and TypeScript for developing and testing APIs across multiple protocols including REST, GraphQL, WebSockets, SSE, and gRPC. It runs on macOS, Windows, and Linux and is distributed under the Apache 2.0 license. The project serves as a direct open source alternative to Postman, offering similar core functionality without vendor lock in or mandatory cloud usage.
read the full Insomnia overview →
About aimock
aimock is a TypeScript mock server that makes every AI provider, protocol, and service an application talks to answer on one local port, built for developers who need deterministic tests of LLM backed software without API keys, network calls, or surprise bills.
read the full aimock overview →
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Frequently asked questions
Is Insomnia or aimock more popular?
Insomnia has 40,021 GitHub stars and aimock has 930. Insomnia has the larger community by that measure.
Are Insomnia and aimock free?
Both are open source. Insomnia is licensed under Apache-2.0 and aimock under MIT. Neither carries a licence fee.
What is the difference between Insomnia and aimock?
Insomnia is written in TypeScript and aimock in TypeScript. 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 aimock?
Choose Insomnia if you want the larger community (40,021 stars) or its Apache-2.0 licence terms. Choose aimock if its feature set, stack or MIT licence fits better. Both are self-hostable.