Rolldown

Rolldown is a high-performance JavaScript bundler built with Rust, designed to offer a significantly faster alternative to existing bundlers. It provides a Rollup-compatible API, allowing developers to leverage a familiar interface and a rich plugin ecosystem. Additionally, Rolldown achieves feature parity with esbuild, incorporating built-in transforms, define, inject, minification, and CSS bundling capabilities. This bundler is particularly well-suited for projects requiring rapid build times, especially those with a large number of modules. It's engineered to handle tens of thousands of modules efficiently, as demonstrated by benchmarks showing superior performance compared to esbuild, rspack, and Rollup + esbuild combinations. Rolldown is also explicitly designed to power Vite 8+ as its unified bundler, making it an excellent choice for Vite users seeking enhanced build performance. Rolldown is free and open-source, supported by a dedicated full-time team and community contributors, making it accessible for all developers looking to optimize their JavaScript bundling process.