Flutter Web Rendering Complete Guide — CanvasKit vs HTML Renderer Flutter Web supports two renderers. Understanding CanvasKit vs HTML renderer helps you pick the right one for your app. Two Renderers HTML Renderer How it works : HTML / CSS / Canvas 2D API Bundle size : Small (~1MB) Initial load : Fast Fidelity : May differ slightly from Flutter desktop Best for : Text-heavy, document-style apps CanvasKit Renderer How it works : Skia compiled to WebAssembly Bundle size : Large (~4MB with Skia WASM) Initial load : Slower (WASM download required) Fidelity : Pixel-perfect match with native Best for : Graphics-heavy apps, games, custom drawing Switching Renderers # Build with HTML renderer flutter build web --web-renderer html # Build with CanvasKit flutter build web --web-renderer canvaskit # Auto (default): mobile → HTML / desktop → CanvasKit flutter build web --web-renderer auto # Dev server flutter run -d chrome --web-renderer canvaskit Enter fullscreen mode Exit fullscreen mode Checking the Active Renderer…