head to head · open source
Ladybird vs Avalonia
Ladybird has 66,237 GitHub stars, 3,163 forks, 535 open issues and last shipped yesterday. Avalonia has 31,517 stars, 2,826 forks, 1,875 open issues and last shipped yesterday. Ladybird leads on adoption by 110% (66,237 vs 31,517 stars). Ladybird is written in C++ under BSD-2-Clause; Avalonia is written in C# under MIT. Ladybird has attracted 5% as many forks as stars, Avalonia 9%. Ladybird 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
| Ladybird | Avalonia | |
|---|---|---|
| GitHub stars | ★ 66K | ★ 32K |
| License | BSD-2-Clause | MIT |
| Written in | C++ | C# |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 3.2K | ⑂ 2.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Ladybird if
- You weight community size — 66K stars and counting
- You want the BSD-2-Clause license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick Avalonia if
- You want the Avalonia feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and Avalonia fits your workflow better
About Ladybird
Ladybird is a truly independent web browser and browser engine, written from scratch in C++ rather than as a fork of any existing engine, and it is built for developers who want to work on a browser engine based on web standards while it remains in a pre alpha state.
read the full Ladybird overview →
About Avalonia
Avalonia is a cross platform UI framework for .NET, written in C and driven by XAML. It provides a flexible styling system and targets a wide range of platforms, including Windows, macOS, Linux, iOS, Android and WebAssembly. The project is mature and production ready, and it is used by companies such as Schneider Electric, Unity, JetBrains and GitHub. It lives in the .NET ecosystem and is distributed through the NuGet package manager.
read the full Avalonia overview →
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Frequently asked questions
Is Ladybird or Avalonia more popular?
Ladybird has 66,237 GitHub stars and Avalonia has 31,517. Ladybird has the larger community by that measure.
Are Ladybird and Avalonia free?
Both are open source. Ladybird is licensed under BSD-2-Clause and Avalonia under MIT. Neither carries a licence fee.
What is the difference between Ladybird and Avalonia?
Ladybird is written in C++ and Avalonia 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, Ladybird or Avalonia?
Choose Ladybird if you want the larger community (66,237 stars) or its BSD-2-Clause licence terms. Choose Avalonia if its feature set, stack or MIT licence fits better. Both are self-hostable.