Rolldown

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Rolldown is ranked #2 of 27 in JavaScript build tools on Inferse. It runs on Android, API, Linux, macOS, Web, Windows. There is a free plan.

Compared on JavaScript build tools

Free plan: Yesrolldown.rs
TypeScript support: Yesrolldown.rs
Code splitting: Yesrolldown.rs
Tree shaking: Yesrolldown.rs
Source maps: Yesrolldown.rs
Plugin API: Yesrolldown.rs

Facts

Purpose: Rolldown is a Rust-based bundler for JavaScript.rolldown.rs · 2 Oct 2026
Vite: Rolldown is designed as the unified bundler powering Vite 8+.rolldown.rs · 2 Oct 2026
Open source: The maker describes Rolldown as free and open source.rolldown.rs · 2 Oct 2026
Compatibility: Rolldown provides a Rollup-compatible API and can reuse most existing Rollup plugins.rolldown.rs · 2 Oct 2026
Built-in features: Built-in capabilities include TypeScript and JSX transforms, module resolution, ESM/CJS interop, define, inject, and minification.rolldown.rs · 2 Oct 2026
Code splitting: Rolldown supports configurable manual code splitting.rolldown.rs · 2 Oct 2026
Experimental feature: Module types are documented as experimental.rolldown.rs · 2 Oct 2026
Install options: The guide provides install commands for npm, pnpm, yarn, bun, and vp.rolldown.rs · 2 Oct 2026
Supported environments: The guide lists prebuilt binaries for Linux, Windows, Apple platforms, Android, FreeBSD, OpenHarmony, and Wasm/Wasi variants.rolldown.rs · 2 Oct 2026
Browser demo: The homepage links to an online Rolldown REPL.rolldown.rs · 2 Oct 2026
Performance limitation: The troubleshooting guide says Windows file-system access can slow builds, especially when transforms run without plugins.rolldown.rs · 2 Oct 2026
Support and community: The site links to GitHub, Discord, and contribution resources.rolldown.rs · 2 Oct 2026
Intended users: The maker recommends using Rolldown through Vite for most applications and points library authors to tsdown.rolldown.rs · 2 Oct 2026
Company relationship: VoidZero Inc. holds the copyrights, funds development, and controls the direction of Rolldown.voidzero.dev · 2 Oct 2026
Purpose: Rolldown is a Rust-based bundler for JavaScript with a Rollup-compatible API and esbuild feature parity.rolldown.rs · 3 Oct 2026
Vite: Rolldown is described as the unified bundler powering Vite 8+.rolldown.rs · 3 Oct 2026
Built-in transforms: Built-in transforms include TypeScript, JSX, and syntax lowering, powered by Oxc.rolldown.rs · 3 Oct 2026
Module formats: Rolldown supports mixed ESM and CommonJS module graphs without requiring @rollup/plugin-commonjs.rolldown.rs · 3 Oct 2026
Code splitting: Its output.codeSplitting option provides granular control over chunking behavior.rolldown.rs · 3 Oct 2026
Rollup plugins: The plugin API is described as identical to Rollup's, allowing most existing Rollup plugins to be reused.rolldown.rs · 3 Oct 2026
Plugin ecosystem: Community plugins published to npm are listed in the Vite Plugin Registry.rolldown.rs · 3 Oct 2026
Recommended use: For most applications, the guide recommends using Rolldown through Vite; it points library bundlers to tsdown.rolldown.rs · 3 Oct 2026
Platform support: Prebuilt binaries are listed for Linux, Windows, and Apple macOS architectures, with additional experimental and other targets documented.rolldown.rs · 3 Oct 2026
Wasm fallback: For platforms without a distributed prebuilt binary, users can use the Wasm build or build Rolldown from source.rolldown.rs · 3 Oct 2026
API: Rolldown provides JavaScript APIs for bundling, watching, and building; the build() API is experimental and may change in patch releases.rolldown.rs · 3 Oct 2026
Security consideration: The troubleshooting guide warns that direct eval can let bundled code access variables from other files and may create a security issue if those variables contain sensitive data.rolldown.rs · 3 Oct 2026
Support and community: The site links to a Discord chat and contribution guide, and says the project is in an early stage and seeks community contributors.rolldown.rs · 3 Oct 2026
License: Rolldown is free and open source; VoidZero states that it remains open source and MIT-licensed.voidzero.dev · 3 Oct 2026