head to head · open source
openapi-generator vs RWKV-Runner
openapi-generator has 26,846 GitHub stars, 7,748 forks, 5,819 open issues and last shipped yesterday. RWKV-Runner has 6,498 stars, 594 forks, 178 open issues and last shipped yesterday. openapi-generator leads on adoption by 313% (26,846 vs 6,498 stars). openapi-generator is written in Java under Apache-2.0; RWKV-Runner is written in TypeScript under MIT. openapi-generator has attracted 29% as many forks as stars, RWKV-Runner 9%. openapi-generator was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (api, 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.
← all 20902 open source comparisons
Side by side
| openapi-generator | RWKV-Runner | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 6.5K |
| License | Apache-2.0 | MIT |
| Written in | Java | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 7.7K | ⑂ 594 |
| 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 RWKV-Runner if
- You want the RWKV-Runner feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and RWKV-Runner fits your workflow better
About openapi-generator
OpenAPI Generator Master ( 7.27.0 ): :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 RWKV-Runner
RWKV Runner This project aims to eliminate the barriers of using large language models by automating everything for you. All you need is a lightweight executable program of just a few megabytes. Additionally, this project provides an interface compatible with the OpenAI API, which means that every ChatGPT client is an RWKV client. [![license][license image]][license url] [![release][release image]][release url] [![py version][py version image]][py version url] English 简体中文 日本語 Install [![Windows][Windows image]][Windows url] [![MacOS][MacOS image]][MacOS url] [![Linux][Linux image]][Linux url] FAQs Preview…
read the full RWKV-Runner overview →
More in Developer Tools
Related comparisons
More API Development & Testing projects
Compare either of these against the rest of the API Development & Testing field.
Frequently asked questions
Is openapi-generator or RWKV-Runner more popular?
openapi-generator has 26,846 GitHub stars and RWKV-Runner has 6,498. openapi-generator has the larger community by that measure.
Are openapi-generator and RWKV-Runner free?
Both are open source. openapi-generator is licensed under Apache-2.0 and RWKV-Runner under MIT. Neither carries a licence fee.
What is the difference between openapi-generator and RWKV-Runner?
openapi-generator is written in Java and RWKV-Runner 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 RWKV-Runner?
Choose openapi-generator if you want the larger community (26,846 stars) or its Apache-2.0 licence terms. Choose RWKV-Runner if its feature set, stack or MIT licence fits better. Both are self-hostable.