head to head · open source
Avalonia vs nanobrowser
Avalonia has 31,756 GitHub stars, 2,879 forks, 1,875 open issues and last shipped 2 days ago. nanobrowser has 14,232 stars, 1,522 forks, 81 open issues and last shipped 12 days ago. Avalonia leads on adoption by 123% (31,756 vs 14,232 stars). Avalonia is written in C# under MIT; nanobrowser is written in TypeScript under Apache-2.0. Avalonia has attracted 9% as many forks as stars, nanobrowser 11%. 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 | nanobrowser | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 14K |
| License | MIT | Apache-2.0 |
| Written in | C# | TypeScript |
| Last push | 2026-11-03 | 2026-10-24 |
| Forks | ⑂ 2.9K | ⑂ 1.5K |
| 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 nanobrowser if
- You want the nanobrowser feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and nanobrowser 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 nanobrowser
🌐 Nanobrowser Nanobrowser is an open source AI web automation tool that runs in your browser. A free alternative to OpenAI Operator with flexible LLM options and multi agent system. ⬇️ Get Nanobrowser from Chrome Web Store for free 👏 Join the community in Discord X 🌟 Loving Nanobrowser? Give us a star and help spread the word! ❤️ Support the project by sponsoring us every contribution helps keep Nanobrowser free and open source! Nanobrowser's multi agent system analyzing HuggingFace in real time, with the Planner intelligently self correcting when encountering obstacles and dynamically instructing the…
read the full nanobrowser overview →
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Frequently asked questions
Is Avalonia or nanobrowser more popular?
Avalonia has 31,756 GitHub stars and nanobrowser has 14,232. Avalonia has the larger community by that measure.
Are Avalonia and nanobrowser free?
Both are open source. Avalonia is licensed under MIT and nanobrowser under Apache-2.0. Neither carries a licence fee.
What is the difference between Avalonia and nanobrowser?
Avalonia is written in C# and nanobrowser 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 nanobrowser?
Choose Avalonia if you want the larger community (31,756 stars) or its MIT licence terms. Choose nanobrowser if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.