Comparison

Avalonia UI vs OpenJFX

No leader: the top candidate OpenJFX has only 0.25 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsMarkdownJSONGraphQLAll open, no key required.
Avalonia UI49
OpenJFX52
Score
vioscaleAI score
Avalonia UI49 / 100low · 31%
OpenJFX52 / 100low · 25%
Pricing
Free tier
Avalonia UI
OpenJFX
Model
Avalonia UIfreemium
OpenJFXcommercial
Price level
Avalonia UIhigh
OpenJFXfree
Starting price
Avalonia UI€299
OpenJFX
Transparent
Avalonia UI
OpenJFX
Integrations
Count
Avalonia UI0
OpenJFX
Adoption
Dependent repos
Avalonia UI
OpenJFX17,108
Github stars
Avalonia UI
OpenJFX3,286
Activity
Commits last 30d
Avalonia UI
OpenJFX28
License
Spdx
Avalonia UI
OpenJFXGPL-2.0
Language
Primary
Avalonia UI
OpenJFXC++
Market
Content
Faq
Avalonia UI6 items
OpenJFX5 items

Capabilities

Feature-by-feature on the axes that matter for desktop app frameworks. “-” means undocumented, not absent.

Capabilities
Native look and feel
Avalonia UI
OpenJFX-
Bundled runtime
Avalonia UI-
OpenJFX-
Auto update builtin
Avalonia UI-
OpenJFX-
Code signing support
Avalonia UI-
OpenJFX-
App store distribution
Avalonia UI-
OpenJFX-
Hot reload dev
Avalonia UI
OpenJFX-
Accessibility support
Avalonia UI-
OpenJFX-
Mobile target support
Avalonia UI
OpenJFX
Ide bundled
Avalonia UI-
OpenJFX-

What each one is

The product in its own terms, so the numbers below have context.

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.

Independently observed

OpenJFX

An open-source platform that provides a toolkit for developing client applications in Java, with libraries and resources supporting the complete application lifecycle from development through deployment.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Avalonia UI

from €299/seat/yrHybridFree tier

Free open-source tier; Plus from €299/seat/year; Pro €899/seat/year; Enterprise €6,999/seat/year

  • FreeFree
    • MIT licensed framework
    • Cross-platform support
    • 70+ built-in controls
    • Community support via GitHub
  • Plus€299/seat/year
    • Everything in Free
    • Avalonia for Visual Studio extension
    • Avalonia for Code (VS Code) extension
    • DevTools
    • Build MCP
    • +2 more
  • Pro€899/seat/year
    • Everything in Plus
    • 6 premium UI controls
    • 70+ charts and data visualizations
    • Priority GitHub responses
  • EnterpriseContact sales
    • Everything in Pro
    • Commercial component source code access
    • SLA and dedicated engineering support
    • Quarterly technical check-ins
    • Long-Term Support releases
    • +1 more
as of verify ↗

OpenJFX

Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Avalonia UI
OpenJFX
iOS
Avalonia UI
OpenJFX
Android
Avalonia UI
OpenJFX
macOS
Avalonia UI
OpenJFX
Windows
Avalonia UI
OpenJFX
Linux
Avalonia UI
OpenJFX
CLI
Avalonia UI
OpenJFX
Deployment
Self-hosted
Avalonia UI
OpenJFX
On-premise
Avalonia UI
OpenJFX
Air-gapped
Avalonia UI
OpenJFX
Still deciding?

Avalonia UI or OpenJFX: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.