tsrs launches experimentally as a Rust port of TypeScript with WebAssembly support; Cloudflare reports up to 8× faster checking than TypeScript 7.0 and about 70% lower memory use in its benchmarks.

Cloudflare’s source chart compares tsrs, TypeScript 7.1 nightly and TypeScript 7.0.2 wall time and peak memory with four checkers; company-published benchmarks, not an independent test.

Published 20 Oct 2026 · 19:38 UTC

Cloudflare ↗ · Source dated 20 Oct 2026

Browse all Live updates · Read Features