head to head · open source
Insomnia vs ruby-openai
Insomnia has 40,021 GitHub stars, 2,365 forks, 874 open issues and last shipped yesterday. ruby-openai has 3,224 stars, 383 forks, 55 open issues and last shipped 5 months ago. Insomnia leads on adoption by 1,141% (40,021 vs 3,224 stars). Insomnia is written in TypeScript under Apache-2.0; ruby-openai is written in Ruby under MIT. Insomnia has attracted 6% as many forks as stars, ruby-openai 12%. Insomnia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api-client), so they are genuine substitutes rather than adjacent tools.
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 | ruby-openai | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 3.2K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | Ruby |
| Last push | 2026-09-17 | 2026-05-01 |
| Forks | ⑂ 2.4K | ⑂ 383 |
| 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 ruby-openai if
- You want the ruby-openai feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Ruby
- You evaluated both and ruby-openai 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 ruby-openai
ruby openai is a Ruby client library for the OpenAI API, released under the MIT license, and it is listed in the Developer Tools / API Development & Testing category. The repository has 3,222 stars, 383 forks, and a six year age, with the last push recorded on 2026 05 01T14:37:06Z. It lives in the Ruby and Rails ecosystem, and its topics include ai, api client, chatgpt, dall e, gpt 4, gpt 4o, o1, openai, rails, ruby, and whisper.
read the full ruby-openai overview →
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Frequently asked questions
Is Insomnia or ruby-openai more popular?
Insomnia has 40,021 GitHub stars and ruby-openai has 3,224. Insomnia has the larger community by that measure.
Are Insomnia and ruby-openai free?
Both are open source. Insomnia is licensed under Apache-2.0 and ruby-openai under MIT. Neither carries a licence fee.
What is the difference between Insomnia and ruby-openai?
Insomnia is written in TypeScript and ruby-openai in Ruby. 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 ruby-openai?
Choose Insomnia if you want the larger community (40,021 stars) or its Apache-2.0 licence terms. Choose ruby-openai if its feature set, stack or MIT licence fits better. Both are self-hostable.