Cross-Platform Support

How well each desktop framework/toolkit supports Windows, macOS, and Linux (and beyond) from a single codebase.

Electron

Electron supports Windows, macOS, and Linux uniformly since the app is essentially a bundled Chromium browser plus Node.js, giving nearly identical behavior everywhere. This makes it one of the most consistent cross-platform options, as the rendering engine itself is the same across OSes. It does not extend to mobile platforms.

Tauri

Tauri supports Windows, macOS, and Linux from a single codebase, and has expanded to mobile (iOS and Android) support in newer versions. Because it relies on each OS’s native webview, minor rendering differences can appear between platforms (e.g., WebView2 vs. WebKit vs. WebKitGTK). The Rust backend code is fully portable across all targets.

Qt

Qt has some of the broadest cross-platform reach among native toolkits, supporting Windows, macOS, Linux, and also embedded/mobile platforms (Android, iOS) through the same core APIs. Both the Widgets and Qt Quick UI paths are fully cross-platform. This breadth, including embedded systems, is a distinguishing strength of Qt.

GTK

GTK officially supports Linux, Windows, and macOS, but its primary design center and best-supported target is Linux/GNOME, where it feels most native and polished. Windows and macOS builds work but historically require extra packaging effort and can feel less native. Mobile support exists in limited forms but is not a primary focus.

JavaFX

JavaFX runs anywhere a compatible JVM is available, giving it Windows, macOS, and Linux support out of the box, plus community efforts for mobile and embedded targets (e.g., via Gluon). Behavior and rendering are consistent across platforms since JavaFX draws its own UI rather than delegating to native widgets. This uniformity is a core JVM cross-platform advantage.

WinForms

WinForms is fundamentally a Windows-only technology, tightly bound to Win32/GDI+ APIs with no official cross-platform support. Community projects have attempted partial Linux/macOS ports (e.g., via Mono), but these are not production-grade or officially maintained. It remains the go-to choice specifically when Windows-only is acceptable.

WPF

WPF is also Windows-only, built on DirectX and Windows-specific APIs, with no official support for macOS or Linux. Unlike WinForms, there isn’t even a strong community cross-platform port due to its deeper reliance on Windows-specific rendering infrastructure. Teams needing cross-platform XAML-based UI typically move to Avalonia or MAUI instead.

.NET MAUI

.NET MAUI targets Windows, macOS, iOS, and Android from a single codebase, making it primarily a cross-platform mobile-plus-desktop framework rather than a Linux-focused one — Linux is not an officially supported target. Its handler architecture maps shared XAML/C# to each platform’s native controls. This makes it strong for teams wanting mobile and desktop coverage together, but incomplete for Linux desktop needs.

Flutter Desktop

Flutter supports Windows, macOS, and Linux desktop targets alongside its original mobile (iOS/Android) and web targets, all from one Dart codebase and rendering engine. Because Flutter draws its own UI rather than using native widgets, visual and behavioral consistency across all these platforms is very high. This makes it one of the broadest single-codebase reaches across desktop, mobile, and web.

JUCE

JUCE supports Windows, macOS, and Linux for both standalone applications and audio plugins, with the same C++ codebase producing plugin builds for VST/AU/AAX formats per platform. Its cross-platform reach also extends to iOS in some contexts, though its primary focus remains desktop audio software. Cross-platform consistency is strong within its audio/plugin niche.

wxWidgets

wxWidgets supports Windows, macOS, and Linux (GTK) by wrapping the genuinely native widget set on each, meaning the same codebase produces apps that look and behave natively everywhere, though minor platform-specific differences in widget behavior can surface. Mobile support exists but is much less mature than its desktop support. Its cross-platform strategy prioritizes native fidelity over pixel-identical uniformity.

Avalonia

Avalonia supports Windows, macOS, and Linux as first-class desktop targets, with additional support for mobile (iOS/Android) and web via WebAssembly, all from a shared XAML/C# codebase. Because it renders through its own Skia-based pipeline rather than native widgets, visual behavior stays highly consistent across every target. This broad reach, combined with a WPF-like API, makes it a common choice for teams wanting XAML-based cross-platform coverage beyond what WPF or MAUI’s Linux support offers.