Introducing WebF Beta, a groundbreaking innovation that revolutionizes mobile app development by bringing standard web technologies to Flutter, allowing developers to keep their existing web stack and ship it to mobile and desktop with native performance.

The web tech stack has become the most popular target for both human developers and AI coding tools, boasting the largest developer ecosystem in history. However, shipping this ecosystem to mobile usually requires a painful tradeoff: rewrite code in a cross-platform framework or ship inside a WebView, living with its performance and platform differences. What if there was a third option? With WebF Beta, you can keep your web stack (React/Vue/Svelte + Vite + Tailwind) and enjoy seamless integration on mobile and desktop.

Your Existing Stack Just Works

Unlike other cross-platform solutions, WebF isn't a new framework to adopt – it's a runtime that allows you to build with standard web technologies and run that code on mobile and desktop with native performance. Many modern stacks work with little to no migration:

  • Web Frameworks: React (v16–19), Vue (v2/v3), Svelte, Preact, Solid, Qwik, Vanilla JavaScript
  • Build Tools: Vite (recommended), Webpack, esbuild, Rollup, Parcel
  • CSS & Styling: Tailwind CSS v3, Sass/SCSS, PostCSS, CSS Modules, Styled Components, Emotion

Getting Started with WebF

Option 1: Try WebF in Minutes (WebF Go)

The fastest way to try WebF is WebF Go – a pre-built native app that includes the WebF engine. It loads your web app from a URL, allowing you to iterate on real devices without building a custom Flutter host app.

Available on:

  • iOS – App Store
  • Android – Google Play
  • Desktop – openwebf.com/en/go

Option 2: Embed WebF in a Flutter App

Add WebF:

flutter pub add webf

Follow the guide: Add WebF to Flutter →

Extraordinary Performance

WebF isn't just another way to run web code – it's a custom-built runtime optimized for mobile and desktop applications. Production apps can start in under 100ms from a cold start.

The Real Performance Problem with Web Apps

The common narrative says web apps feel slower than native apps because JavaScript is heavy or CSS is complex. That's not the real issue. The real gap is startup behavior: native apps often start warm; web apps often start cold. After you restart your phone, everything feels sluggish – apps take longer to open.

WebF: Web Technologies, Native Lifecycle

What if HTML/CSS/JavaScript apps used the same startup phase and lifetime as native and Flutter apps? That's the core idea that drives WebF's performance. WebF keeps its engine warm in memory, just like Flutter and native runtimes. When your app starts, it's not booting a full browser – it's reusing an optimized, pre-warmed runtime.

Why Flutter?

Inconsistent UI behavior and platform APIs waste developer time – debugging edge cases, chasing platform-specific bugs, and maintaining "almost the same" behavior across OSes. That's why we made a critical architectural decision: use Flutter as the rendering backend for one crucial reason – it provides a native-like experience, allowing developers to focus on building apps without worrying about the underlying infrastructure.

By targeting WebF Beta, you can unlock extraordinary performance and native-like experiences for your mobile app development projects, bringing JavaScript and the web tech stack to the forefront of mobile and desktop applications.