Warper 7.2 is a cutting-edge open-source React virtualization library utilizing Rust and WebAssembly for unmatched performance. With zero-allocation hot paths and O(1) circular buffer operations, Warp

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Warper 7.2 is an open-source React virtualization library that offloads scroll calculations to a Rust-compiled WebAssembly module. Key v7 changes include zero-allocation hot paths using TypedArrays, O(1) circular buffer operations for frame timing, and universal bundler support (Vite, Webpack, Rollup, esbuild, Parcel, Next.js). The library uses a Fenwick tree for item height tracking, enabling O(log n) prefix sum queries. Benchmarks claim 120 FPS with 100,000 items versus react-window's ~40 FPS. At 8.7KB gzipped, it sits between react-window (~6KB) and TanStack Virtual (~12KB). Community reception is mixed, with enthusiasm for the approach but questions about practical necessity and reported Firefox compatibility issues.

Warper: Rust Powered React Virtualisation Library