Warper - Ultra-Fast React Virtualization | 10M+ Rows at 120 FPS

⚡

Zero-Allocation Hot Paths

TypedArrays (Int32Array, Float64Array) replace regular arrays for zero GC pressure during scrolling

🔄

O(1) Circular Buffers

Replaced push()/shift() with constant-time circular buffer operations for frame timing

📊

Enhanced Benchmarks

Score levels from Outstanding to Poor with emoji indicators for intuitive performance assessment

📦

Universal Bundler Support

Works with Vite, Webpack, Rollup, esbuild, Parcel, and Next.js out of the box

📱

Responsive Examples

All demo examples now fully responsive for mobile, tablet, and desktop viewports

🤖

Context7 MCP Ready

Use AI assistants with Context7 MCP for intelligent help with Warper integration

Rust + WebAssembly Core

Performance-critical calculations run in compiled WebAssembly. Binary search, range calculations, and offset lookups at near-native speed.

O(1) Constant-Time Lookups

Fenwick trees enable instant offset calculations for any index. No more O(n) linear scans on every scroll event.

Zero GC Pressure

Pre-allocated memory pools and typed arrays eliminate garbage collection pauses during scroll for consistent 120+ FPS.

Variable Row Heights

Full support for dynamic item sizes with Fenwick tree recalculations in O(log n) time. Measure once, scroll forever.

GPU-Accelerated Rendering

CSS transform3d() with contain: strict for hardware-accelerated compositing. Zero layout thrashing.

Universal Browser Support

Works flawlessly on Chrome, Firefox, Safari, and Edge. Mobile-optimized with touch inertia support.

Performance

2× Faster Than the Competition

Real-world benchmarks show Warper outperforming other virtualization libraries under heavy load. Scroll through 1 million rows while maintaining buttery-smooth 120 FPS.

Scroll Performance (FPS) — Higher is better