head to head · open source
Avalonia vs slate
Avalonia has 31,747 GitHub stars, 2,877 forks, 1,875 open issues and last shipped yesterday. slate has 31,747 stars, 3,306 forks, 653 open issues and last shipped 6 days ago. Avalonia leads on adoption by 0% (31,747 vs 31,747 stars). Avalonia is written in C# under MIT; slate is written in TypeScript under MIT. Avalonia has attracted 9% as many forks as stars, slate 10%. 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.
← all 20902 open source comparisons
Side by side
| Avalonia | slate | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 32K |
| License | MIT | MIT |
| Written in | C# | TypeScript |
| Last push | 2026-11-02 | 2026-10-28 |
| Forks | ⑂ 2.9K | ⑂ 3.3K |
| 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 slate if
- You want the slate feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and slate 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 slate
A completely customizable framework for building rich text editors. Why? · Principles · Demo · Examples · Documentation · Contributing! Slate lets you build rich, intuitive editors like those in Medium, Dropbox Paper or Google Docs—which are becoming table stakes for applications on the web—without your codebase getting mired in complexity. It can do this because all of its logic is implemented with a series of plugins, so you aren't ever constrained by what is or isn't in "core". You can think of it like a pluggable implementation of contenteditable built on top of React. It was inspired by libraries like…
read the full slate overview →
More in Productivity & Utilities
Related comparisons
More Browsers & Extensions projects
Compare either of these against the rest of the Browsers & Extensions field.
Frequently asked questions
Is Avalonia or slate more popular?
Avalonia has 31,747 GitHub stars and slate has 31,747. Avalonia has the larger community by that measure.
Are Avalonia and slate free?
Both are open source. Avalonia is licensed under MIT and slate under MIT. Neither carries a licence fee.
What is the difference between Avalonia and slate?
Avalonia is written in C# and slate 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 slate?
Choose Avalonia if you want the larger community (31,747 stars) or its MIT licence terms. Choose slate if its feature set, stack or MIT licence fits better. Both are self-hostable.