App Frameworks

6 open source tools compared. Sorted by stars — scroll down for our analysis.

Tool	Stars	Velocity	Language	License	Score
Flutter Google UI toolkit for mobile, web, and desktop	175.9k	+78/wk	Dart	BSD 3-Clause "New" or "Revised" License	82
React Native Build native apps using React	125.7k	+48/wk	C++	MIT License	82
Electron Build cross-platform desktop apps with JS/HTML/CSS	120.8k	+80/wk	C++	MIT License	82
Tauri Build desktop and mobile apps with web frontend	105.0k	+276/wk	Rust	Apache License 2.0	82
Wails Create beautiful applications using Go	33.6k	+72/wk	Go	MIT License	79
shell ‼️ No waybar here ‼️	8.7k	+136/wk	QML	GNU General Public License v3.0	70

Our Analysis

Flutter175.9k★

Flutter builds natively compiled applications for mobile, web, and desktop from a single Dart codebase. You write in Dart, and Flutter renders everything with its own engine: no native UI components, no web views, just pixels painted directly to the screen. That means your app looks identical on every platform. BSD 3-Clause, Dart. The widget system is composable: everything is a widget, you nest them like LEGO bricks. Hot reload is fast, making UI iteration feel instant. The package ecosystem (pub.dev) has thousands of plugins for maps, payments, cameras, Bluetooth, and more. Completely free. No paid tier, no usage limits, no premium SDK features. Google uses it for their own apps (Google Pay, Stadia, Ads) and maintains it as a free tool. Solo: free, excellent for shipping to both app stores from one codebase. Small teams: free, huge time savings vs maintaining native iOS + Android separately. Medium: free, strong for teams without native mobile expertise. Large: free, but evaluate whether platform-specific UX matters enough to justify native development. The catch: Dart. Almost nobody learns Dart for anything other than Flutter. The talent pool is smaller than React Native's JavaScript ecosystem. Flutter's custom rendering means your app won't look or feel exactly like native iOS or Android; Material Design everywhere. Some packages are poorly maintained. And web support, while functional, produces large bundles that don't feel like a real web app.

React Native125.7k★

React Native builds actual native mobile apps with native UI components, not a website wrapped in a phone frame. React Native is the most battle-tested way to do it. Write your app in JavaScript/TypeScript using React components, and it renders native iOS and Android UI. One codebase, two platforms. This is Meta's own framework, used in Facebook, Instagram, and Messenger. That scale proves it works in production. The ecosystem is enormous: navigation libraries, UI kits, native module bridges, and thousands of community packages. The New Architecture (Fabric renderer, TurboModules) has made performance significantly better than the old bridge-based system. Completely free under MIT. No paid tier from Meta. Flutter is the main competitor: Dart instead of JavaScript, pixel-perfect rendering instead of native components. Expo simplifies React Native development significantly by handling the native toolchain for you. If you're starting fresh with React Native, start with Expo, not bare React Native. The catch: "learn once, write anywhere" still means platform-specific work. Complex animations, native APIs, and platform-specific UI patterns require writing native code (Swift/Kotlin) or finding a library that bridges it. Debugging can be painful; you're debugging across JavaScript, native, and the bridge layer. Build times are slow. And the upgrade path between versions has historically been rough, though it's improving.

Electron120.8k★

Electron wraps Chromium and Node.js into desktop applications for Windows, Mac, and Linux, so you build with JavaScript, HTML, and CSS you already know. Slack, VS Code, Discord, Figma's desktop app, Notion, all Electron. You build a web app, Electron makes it a native-feeling desktop app. MIT license, maintained by GitHub (Microsoft). The ecosystem is massive. Frameworks like Electron Forge and electron-builder handle packaging, signing, and auto-updates. If you know React/Vue/Svelte, you can ship a desktop app. Everything is free. No paid tier, no commercial license. The catch: every Electron app ships its own copy of Chromium. That "Hello World" app is 150MB+ and uses 200-300MB of RAM minimum. Users complain about this constantly. If you're building something lightweight, Tauri uses the system's built-in webview instead, resulting in 5-10MB apps that use a fraction of the memory. Electron is the pragmatic choice when you want the largest ecosystem and most battle-tested tooling. Tauri is the better choice when app size and resource usage matter. Choose your trade-off.

Tauri105.0k★

Tauri lets you wrap a web frontend (HTML, CSS, JavaScript) in a native desktop shell. Same idea as Electron (which VS Code uses), but Tauri apps are dramatically smaller because they use the OS's built-in web renderer instead of shipping a copy of Chrome. Apache 2.0 and MIT dual-licensed, Rust backend. A basic Tauri app is 3MB where the Electron equivalent is 150MB+. Backend logic runs in Rust for native performance and system access. Tauri v2 added mobile support (iOS and Android), making it cross-platform for desktop AND mobile. Completely free. CrabNebula (the company behind Tauri) offers paid cloud build and distribution services, but the framework itself costs nothing. Solo: perfect for shipping a desktop app with web tech. Small teams: great for internal tools. Growing teams: evaluate whether Rust is a skill your team has. Large: consider CrabNebula for build infrastructure at scale. The catch: you need Rust for the backend. If your team is pure JavaScript, that's a real barrier. The ecosystem is younger than Electron's: fewer plugins, fewer examples, and debugging the Rust-JS bridge gets tricky. And because each OS uses its own web renderer, you'll hit cross-platform rendering inconsistencies that Electron avoids by shipping its own browser.

Wails33.6k★

Wails builds desktop apps using Go and web tech, but uses the OS native webview instead of bundling Chromium. The result: small binaries (5-10MB vs Electron's 150MB+), low memory usage, and native OS integration. MIT license. Build for Windows, macOS, and Linux from one codebase. The frontend can use any framework: React, Vue, Svelte, plain HTML. Go handles the backend logic, exposed to the frontend via auto-generated TypeScript bindings. Hot reload during development, native menus, dialogs, and system tray support. Fully free. No paid tier, no hosted version. It's a framework you develop with. Solo developers: Wails is excellent if you know Go and want desktop apps without learning a native GUI toolkit. Small teams: the Go + web stack means most web developers can contribute to the frontend. Works at any team size. The catch: native webview means your app renders differently on each OS. Windows uses WebView2 (Chromium-based), macOS uses WebKit, Linux uses WebKitGTK. Cross-platform consistency is harder than Electron where everyone gets the same Chromium. Wails v3 is in development with breaking changes from v2. And the ecosystem of plugins and community packages is much smaller than Electron's. If you need absolute cross-platform pixel-perfect consistency, Electron or Tauri (Rust-based, same webview approach) are safer bets.

shell8.7k★

This is a full desktop shell built in QML for Hyprland (a Wayland compositor). No waybar, no polybar, no cobbling together five different tools. One unified shell that handles everything, with a This thing is exploding. GPL-3.0. The shell replaces your entire desktop interface: panel/bar, notification center, app launcher, lock screen, wallpaper engine, and system controls. Built in QML (Qt's declarative UI language) for buttery animations. Fully free. The creator has a Ko-fi for donations but there's no paid tier or premium features. The catch: this only works on Hyprland (a specific Wayland compositor on Linux). If you're on GNOME, KDE, Sway, or anything else, let alone macOS or Windows, this isn't for you. It's also a dotfiles project, meaning you're adopting someone else's configuration. Customizing it means understanding QML. And the 'no waybar' philosophy means you lose access to waybar's extensive module ecosystem.