Vite 8.0 shipped with Rolldown as its single bundler, replacing both esbuild and Rollup in one move. Rolldown is written in Rust, built on top of the Oxc toolchain, and the team claims 10-30x faster builds than Rollup with performance roughly matching esbuild.
The release also brings a few practical additions: DevTools for build analysis, Wasm support in SSR, and browser console log forwarding. On the roadmap is a full bundle mode that the team says will cut dev server startup time by 3x and reduce network requests by 10x.
This fits a pattern that’s been building for a while. Turbopack, Rspack, and TypeScript’s upcoming native compiler are all chasing the same idea: rewrite the slow parts of the JavaScript toolchain in Rust or Go and let native speed do the work. Rolldown 1.0 is the Vite team’s version of that bet.

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Vite 8.0 has shipped with Rolldown as its sole bundler, replacing both esbuild and Rollup. Rolldown is written in Rust and built on the Oxc toolchain, delivering 10-30x faster builds than Rollup with performance comparable to esbuild. The release adds DevTools for build analysis, Wasm support in SSR, and browser console log forwarding. A full bundle mode is on the roadmap, promising 3x faster dev server startup and 10x fewer network requests. This follows a broader trend of rewriting JavaScript toolchain components in Rust or Go, alongside projects like Turbopack, Rspack, and TypeScript's native compiler.

Rolldown 1.0 and Vite 8.0: Rust-based bundler replaces esbuild and Rollup

Rule 1: If it can be written in Javascript, it WILL be written Javascript
Rule 2: If it is used and can be rewritten in Rust, it WILL be rewritten in Rust.
This is amazing and funny at the same time. Its like we do everything in JS as an MVP and once proven it works we rebuild it using Rust.