head to head · open source
Ladybird vs Avalonia
Ladybird has 66,807 GitHub stars, 3,194 forks, 535 open issues and last shipped yesterday. Avalonia has 31,747 stars, 2,877 forks, 1,875 open issues and last shipped yesterday. Ladybird leads on adoption by 110% (66,807 vs 31,747 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 | ★ 67K | ★ 32K |
| License | BSD-2-Clause | MIT |
| Written in | C++ | C# |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.2K | ⑂ 2.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Ladybird if
- You weight community size — 67K 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 Ladybird is a truly independent web browser, using a novel engine based on web standards. [!IMPORTANT] Ladybird is in a pre alpha state, and only suitable for use by developers Features We aim to build a complete, usable browser for the modern web. Ladybird uses a multi process architecture with a main UI process, several WebContent renderer processes, an ImageDecoder process, and a RequestServer process. Image decoding and network connections are done out of process to be more robust against malicious content. Each tab has its own renderer process, which is sandboxed from the rest of the system. At the…
read the full Ladybird overview →
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 →
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Frequently asked questions
Is Ladybird or Avalonia more popular?
Ladybird has 66,807 GitHub stars and Avalonia has 31,747. 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 (66,807 stars) or its BSD-2-Clause licence terms. Choose Avalonia if its feature set, stack or MIT licence fits better. Both are self-hostable.