head to head · open source
openapi-generator vs open-connector
openapi-generator has 26,846 GitHub stars, 7,749 forks, 5,810 open issues and last shipped today. open-connector has 6,163 stars, 586 forks, 0 open issues and last shipped yesterday. openapi-generator leads on adoption by 336% (26,846 vs 6,163 stars). openapi-generator is written in Java under Apache-2.0; open-connector is written in TypeScript under a custom or non-standard licence. openapi-generator has attracted 29% as many forks as stars, open-connector 10%. openapi-generator 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
| openapi-generator | open-connector | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 6.2K |
| License | Apache-2.0 | Custom / other |
| Written in | Java | TypeScript |
| Last push | 2026-11-03 | 2026-11-02 |
| Forks | ⑂ 7.7K | ⑂ 586 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick openapi-generator if
- You weight community size — 27K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick open-connector if
- You want the open-connector feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and open-connector fits your workflow better
About openapi-generator
OpenAPI Generator Master ( 7.28.0 ): :star::star::star: If you would like to contribute, please refer to guidelines and a list of open tasks. :star::star::star: :bangbang: To migrate from Swagger Codegen to OpenAPI Generator, please refer to the migration guide :bangbang: :notebook with decorative cover: For more information, please refer to the Wiki page and FAQ :notebook with decorative cover: :notebook with decorative cover: The eBook A Beginner's Guide to Code Generation for REST APIs is a good starting point for beginners :notebook with decorative cover: :warning: If the OpenAPI spec, templates or any input…
read the full openapi-generator overview →
About open-connector
English 简体中文 繁體中文 日本語 한국어 Русский Français Español OpenConnector is an open source connector gateway for AI agents and an alternative to Pipedream/Composio. Connect user app accounts once, then expose a shared catalog of 1,000+ providers and 10,000+ prebuilt Actions to agents and applications. Managed OAuth and hosted runtime, ready to use. No deployment or OAuth app setup. Run locally or on your own infrastructure with Docker or Node.js. You manage storage and OAuth apps. Cloudflare , Fly.io , RepoCloud , nibrun , and more. 🚀 OOMOL Hosted Self host More platforms Use the Connector SDK from app code, oo CLI as…
read the full open-connector overview →
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Frequently asked questions
Is openapi-generator or open-connector more popular?
openapi-generator has 26,846 GitHub stars and open-connector has 6,163. openapi-generator has the larger community by that measure.
Are openapi-generator and open-connector free?
Both are open source. openapi-generator is licensed under Apache-2.0, and open-connector has no licence declared in this registry. Both are free to self-host.
What is the difference between openapi-generator and open-connector?
openapi-generator is written in Java and open-connector 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, openapi-generator or open-connector?
Choose openapi-generator if you want the larger community (26,846 stars) or its Apache-2.0 licence terms. Choose open-connector if its feature set, stack or Custom / other licence fits better. Both are self-hostable.