head to head · open source
Avalonia vs quasar
Avalonia has 31,518 GitHub stars, 2,826 forks, 1,875 open issues and last shipped 2 days ago. quasar has 27,210 stars, 3,674 forks, 74 open issues and last shipped 2 days ago. Avalonia leads on adoption by 16% (31,518 vs 27,210 stars). Avalonia is written in C# under MIT; quasar is written in JavaScript under MIT. Avalonia has attracted 9% as many forks as stars, quasar 14%. Avalonia was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (android, ios), 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 | quasar | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 27K |
| License | MIT | MIT |
| Written in | C# | JavaScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.8K | ⑂ 3.7K |
| 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 quasar if
- You want the quasar feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and quasar fits your workflow better
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 →
About quasar
Quasar Framework is an MIT licensed Vue.js framework that builds responsive single page apps, server side rendered and statically generated sites, progressive web apps, browser extensions, hybrid mobile apps, and Electron desktop apps from a single codebase.
read the full quasar overview →
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Frequently asked questions
Is Avalonia or quasar more popular?
Avalonia has 31,518 GitHub stars and quasar has 27,210. Avalonia has the larger community by that measure.
Are Avalonia and quasar free?
Both are open source. Avalonia is licensed under MIT and quasar under MIT. Neither carries a licence fee.
What is the difference between Avalonia and quasar?
Avalonia is written in C# and quasar in JavaScript. 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 quasar?
Choose Avalonia if you want the larger community (31,518 stars) or its MIT licence terms. Choose quasar if its feature set, stack or MIT licence fits better. Both are self-hostable.