head to head · open source
Avalonia vs feathers
Avalonia has 31,747 GitHub stars, 2,877 forks, 1,875 open issues and last shipped yesterday. feathers has 15,256 stars, 802 forks, 121 open issues and last shipped 2 days ago. Avalonia leads on adoption by 108% (31,747 vs 15,256 stars). Avalonia is written in C# under MIT; feathers is written in TypeScript under MIT. Avalonia has attracted 9% as many forks as stars, feathers 5%. Avalonia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (browser), 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
| Avalonia | feathers | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 15K |
| License | MIT | MIT |
| Written in | C# | TypeScript |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 2.9K | ⑂ 802 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Avalonia if
- You weight community size — 32K stars and counting
- You want the MIT license terms
- Your stack matches C#
- You value the larger contributor base for long-term maintenance
pick feathers if
- You want the feathers feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and feathers fits your workflow better
About Avalonia
📖 About Avalonia is a cross platform UI framework for dotnet, providing a flexible styling system and supporting a wide range of platforms such as Windows, macOS, Linux, iOS, Android and WebAssembly. Avalonia is mature and production ready and is used by companies, including Schneider Electric, Unity, JetBrains and GitHub. Considered by many to be the spiritual successor to WPF, Avalonia UI provides a familiar, modern development experience for XAML developers creating cross platform applications. While Avalonia UI is similar to WPF, it isn't a 1:1 copy, and you'll find plenty of improvements. For those seeking…
read the full Avalonia overview →
About feathers
Feathers is a full stack framework for creating web APIs and real time applications with TypeScript or JavaScript. Feathers can interact with any backend technology, supports many databases out of the box and works with any frontend like React, VueJS, Angular, React Native, Android or iOS. Getting started Get started with just three commands: To learn more about Feathers visit the website at feathersjs.com or jump right into the Feathers guides. Contributing To start developing, clone this repository, then run: To run all tests run Individual tests can be run in the module you are working on: License Copyright…
read the full feathers overview →
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Frequently asked questions
Is Avalonia or feathers more popular?
Avalonia has 31,747 GitHub stars and feathers has 15,256. Avalonia has the larger community by that measure.
Are Avalonia and feathers free?
Both are open source. Avalonia is licensed under MIT and feathers under MIT. Neither carries a licence fee.
What is the difference between Avalonia and feathers?
Avalonia is written in C# and feathers 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, Avalonia or feathers?
Choose Avalonia if you want the larger community (31,747 stars) or its MIT licence terms. Choose feathers if its feature set, stack or MIT licence fits better. Both are self-hostable.