head to head · open source
redoc vs fusio
redoc has 25,996 GitHub stars, 2,407 forks, 449 open issues and last shipped 2 days ago. fusio has 2,129 stars, 247 forks, 169 open issues and last shipped 10 days ago. redoc leads on adoption by 1,121% (25,996 vs 2,129 stars). redoc is written in TypeScript under MIT; fusio is written in PHP under Apache-2.0. redoc has attracted 9% as many forks as stars, fusio 12%. redoc was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (openapi), 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
| redoc | fusio | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 2.1K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | PHP |
| Last push | 2026-11-03 | 2026-10-26 |
| Forks | ⑂ 2.4K | ⑂ 247 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick redoc if
- You weight community size — 26K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick fusio if
- You want the fusio feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches PHP
- You evaluated both and fusio fits your workflow better
About redoc
Learn what's coming in Redoc 3.x → Generate beautiful API documentation from OpenAPI About Redoc Redoc is an open source tool for generating documentation from OpenAPI (formerly Swagger) definitions. By default Redoc offers a three panel, responsive layout: The left panel contains a search bar and navigation menu. The central panel contains the documentation. The right panel contains request and response examples. Live demo If you want to see how Redoc renders your OpenAPI definition, you can try it out online at A version of the Swagger Petstore API is displayed by default. To test it with your own OpenAPI…
read the full redoc overview →
About fusio
Fusio Open Source API Management Platform Turn your business logic into scalable API products for humans and AI agents. 📖 Documentation • 📺 Video Walkthrough (15m) • 💬 Discord Community Fusio is a self hosted, open source backend platform and API gateway written in PHP that bridges the gap between your internal infrastructure and the outside world. Whether you are exposing legacy databases, orchestrating microservices, or building custom business logic, Fusio handles the heavy lifting. It transforms your services into a professional API product, complete with an automated developer portal, SDK generation, and…
read the full fusio overview →
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Frequently asked questions
Is redoc or fusio more popular?
redoc has 25,996 GitHub stars and fusio has 2,129. redoc has the larger community by that measure.
Are redoc and fusio free?
Both are open source. redoc is licensed under MIT and fusio under Apache-2.0. Neither carries a licence fee.
What is the difference between redoc and fusio?
redoc is written in TypeScript and fusio in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, redoc or fusio?
Choose redoc if you want the larger community (25,996 stars) or its MIT licence terms. Choose fusio if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.