head to head · open source
redoc vs NSwag
redoc has 25,998 GitHub stars, 2,406 forks, 449 open issues and last shipped 3 days ago. NSwag has 7,369 stars, 1,363 forks, 2,057 open issues and last shipped 2 months ago. redoc leads on adoption by 253% (25,998 vs 7,369 stars). redoc is written in TypeScript under MIT; NSwag is written in C# under MIT. redoc has attracted 9% as many forks as stars, NSwag 18%. redoc was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (openapi, swagger), 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 | NSwag | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 7.4K |
| License | MIT | MIT |
| Written in | TypeScript | C# |
| Last push | 2026-10-31 | 2026-09-07 |
| Forks | ⑂ 2.4K | ⑂ 1.4K |
| 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 NSwag if
- You want the NSwag feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and NSwag 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 NSwag
NSwag: The Swagger/OpenAPI toolchain for .NET, ASP.NET Core and TypeScript NSwag NJsonSchema Apimundo Namotion.Reflection :point right: Announcing Apimundo: An API documentation system based on NSwag and NJsonSchema :point left: NSwag is a Swagger/OpenAPI 2.0 and 3.0 toolchain for .NET, .NET Core, Web API, ASP.NET Core, TypeScript (jQuery, AngularJS, Angular 2+, Aurelia, KnockoutJS and more) and other platforms, written in C . The OpenAPI/Swagger specification uses JSON and JSON Schema to describe a RESTful web API. The NSwag project provides tools to generate OpenAPI specifications from existing ASP.NET Web API…
read the full NSwag overview →
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Frequently asked questions
Is redoc or NSwag more popular?
redoc has 25,998 GitHub stars and NSwag has 7,369. redoc has the larger community by that measure.
Are redoc and NSwag free?
Both are open source. redoc is licensed under MIT and NSwag under MIT. Neither carries a licence fee.
What is the difference between redoc and NSwag?
redoc is written in TypeScript and NSwag in C#. 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 NSwag?
Choose redoc if you want the larger community (25,998 stars) or its MIT licence terms. Choose NSwag if its feature set, stack or MIT licence fits better. Both are self-hostable.