Avalonia UI
A cross-platform .NET UI framework for building desktop, mobile, and web applications with a single codebase using C# and XAML.
- Also known as
- avalonia-ui
Available worldwide · Popular in: US, EU, GB
What is Avalonia UI?
An open-source, MIT-licensed framework that allows developers to build applications for Windows, macOS, Linux, iOS, Android, and WebAssembly using shared C# and XAML code. It renders custom user interfaces consistently across all target platforms by implementing its own UI drawing rather than relying on platform-native controls.
Avalonia UI pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Free open-source tier; Plus from €299/seat/year; Pro €899/seat/year; Enterprise €6,999/seat/year
Free
Free- MIT licensed framework
- Cross-platform support
- 70+ built-in controls
- Community support via GitHub
Plus
- Everything in Free
- Avalonia for Visual Studio extension
- Avalonia for Code (VS Code) extension
- DevTools
- Build MCP
- DevTools MCP
- Parcel MCP
Pro
- Everything in Plus
- 6 premium UI controls
- 70+ charts and data visualizations
- Priority GitHub responses
Enterprise
Contact sales- Everything in Pro
- Commercial component source code access
- SLA and dedicated engineering support
- Quarterly technical check-ins
- Long-Term Support releases
- Air-gapped deployment support
What Avalonia UI does
The capabilities that matter for desktop app frameworks, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Native look and feel
- ✗
- Bundled runtime
- -
- Auto update builtin
- -
- Code signing support
- -
- App store distribution
- -
- Hot reload dev
- ✓
- Accessibility support
- -
- Mobile target support
- ✓
- Ide bundled
- -
Platform & deployment
Independently observed- iOS
- Web
- Linux
- Android
- Windows
- Air-gapped
Integrations (5)
Independently observed- Visual Studio•
- VS Code•
- Claude Code←•
- GitHub Copilot←•
- Codex←•
Avalonia UI FAQ
Common questions about Avalonia UI, answered from independent, dated evidence.
What is Avalonia UI?
An open-source, MIT-licensed framework that allows developers to build applications for Windows, macOS, Linux, iOS, Android, and WebAssembly using shared C# and XAML code. It renders custom user interfaces consistently across all target platforms by implementing its own UI drawing rather than relying on platform-native controls. It is indexed under Desktop App Frameworks.
Source: https://avaloniaui.net/pricing
Is Avalonia UI free?
Avalonia UI offers a free tier, so you can start without paying. Paid plans start at €299 per user per year. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.
Source: https://avaloniaui.net/pricing
What platforms does Avalonia UI support?
Avalonia UI supports the web, Windows, macOS, Linux, iOS and Android. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://avaloniaui.net/pricing
Can Avalonia UI be self-hosted?
Yes. Avalonia UI can be deployed on-premise and air-gapped, so it does not have to run on the vendor's infrastructure.
Source: https://avaloniaui.net/pricing
What security certifications does Avalonia UI have?
We have independently confirmed GDPR for Avalonia UI. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Avalonia UI not holding them. Always confirm compliance directly before you rely on it.
Where is Avalonia UI available?
Avalonia UI is available worldwide. Its primary markets are the United States, the EU and the United Kingdom. The vendor is headquartered in Estonia.
Source: https://avaloniaui.net/pricing
Avalonia UI alternatives
Other desktop app frameworks we track, ranked by the same independent score.
- FyneA Go framework for building native desktop and mobile applications across platformslow · 31%
- JUCEOpen-source C++ framework for building cross-platform desktop and mobile applications, including audio pluginslow · 20%
- OpenJFXlow · 24%
- wxWidgetsA cross-platform C++ GUI toolkit for building native desktop applications across multiple operating systems from a single codebaselow · 29%
- NW.jsA desktop application runtime that enables building cross-platform native apps using web technologies with direct Node.js accesslow · 25%
- Xojolow · 8%
Compare Avalonia UI
Side by side against other desktop app frameworks, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Avalonia UI, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Pricing transparency | 100 | 0.05 | 5.3 | ✓ |
| Capabilities | 46 | 0.03 | 1.5 | ✓ |
| Price level | 25 | 0.04 | 1.0 | ✓ |
| Integrations | 22 | 0.04 | 0.8 | ✓ |
| Reliability | 0 | 0.05 | 0.0 | - |
| Security posture | 5 | 0.09 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 64% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Hot reload dev, Mobile target support | mediumsource · 2026-09-24 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 5 | mediumsource · 2026-09-24 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | HqCountry: EE · PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-18 · 75% |
Pricing
Security
| Attribute | Value | Evidence |
|---|---|---|
| Gdpr | Yes | highsource · 2026-08-18 · 75% |
Is Avalonia UI the right choice for you?
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