esbuild vs Rolldown
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A very fast tool that bundles and minifies JavaScript, TypeScript, and CSS for the web.
Open source · MIT
A fast JavaScript/TypeScript bundler written in Rust, with a Rollup-compatible API.
The short answer
Choose esbuild if you need…
- Developers who want fast builds for JavaScript, TypeScript, or CSS projects
- Teams using React or other JSX-based frontends
- Projects that mix ESM and CommonJS modules
- People who want a simple API through a CLI, JavaScript, or Go
Choose Rolldown if you need…
- Developers who already use Rollup plugins and want a faster bundler
- Vite users interested in the planned future bundler
- Teams building JavaScript or TypeScript projects who want a Rust-based build tool
- Contributors interested in Rust-based JavaScript tooling
Side-by-side
| esbuild | Rolldown | |
|---|---|---|
| Type | Dev tool | Dev tool |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 40.1k | 14k |
| Setup difficulty | Intermediate | Intermediate |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | Go | Rust |
| Last code update | 3 months ago | 4 days ago |
What each one is
esbuild
esbuild takes your web source code (JavaScript, TypeScript, JSX, and CSS) and combines it into files that browsers can load, a process called bundling. It also minifies code to make it smaller and can produce source maps for debugging. The project emphasizes speed, claiming build tools are often 10-100x slower than they could be, and it does this without needing a cache.
Rolldown
Rolldown is a tool that takes JavaScript and TypeScript source files and bundles them into optimized output files that browsers or servers can run. It is written in Rust for speed and offers an API and plugin interface compatible with Rollup. The README says it is intended to become the future bundler used in Vite, and that it will be more similar to esbuild in scope.
Best for
esbuild
- Developers who want fast builds for JavaScript, TypeScript, or CSS projects
- Teams using React or other JSX-based frontends
- Projects that mix ESM and CommonJS modules
- People who want a simple API through a CLI, JavaScript, or Go
Rolldown
- Developers who already use Rollup plugins and want a faster bundler
- Vite users interested in the planned future bundler
- Teams building JavaScript or TypeScript projects who want a Rust-based build tool
- Contributors interested in Rust-based JavaScript tooling
Strengths
esbuild
- The README describes very high speed as its main goal, and it works without a cache
- Built-in support for JavaScript, TypeScript, JSX, and CSS without extra setup listed in the README
- Offers CLI, JavaScript, and Go APIs with plugin support
Rolldown
- Written in Rust, which the project presents as the basis for its speed
- Offers Rollup-compatible APIs and plugin interface, easing migration from Rollup
- Released under the permissive MIT license with a large community (about 14,000 stars)
Not ideal for
esbuild
- Beginners who want a fully guided setup with a lot of hand-holding, since the README points to separate getting-started and API docs
- Projects that depend on plugins or features the README does not describe, since plugin details live on the external documentation site
Rolldown
- Beginners who need a fully documented, stable production tool, since the README does not state a stability or maturity level
- People who need a bundler for non-JavaScript languages, since it targets JavaScript/TypeScript only
- Projects that depend on esbuild-specific behavior, since the README says it will be similar in scope but does not promise identical behavior
Trade-offs
esbuild
- The speed claims come from the README's own benchmark chart; results will vary by project
- The README is truncated here, so specific install steps and version requirements are not confirmed
- Latest release is listed without binaries, so installation likely goes through a package manager or building from source
Rolldown
- The README describes it as intended to become Vite's future bundler, so its role and roadmap may still be evolving
- The README is truncated here and does not show detailed setup steps, so install guidance is limited
- Its feature scope is described only in broad terms; specific capabilities should be checked in the documentation at rolldown.rs
Getting started
esbuild
Clone the repository
git clone https://github.com/evanw/esbuildFrequently asked questions
What is the difference between esbuild and Rolldown?
esbuild: A very fast tool that bundles and minifies JavaScript, TypeScript, and CSS for the web. Rolldown: A fast JavaScript/TypeScript bundler written in Rust, with a Rollup-compatible API. esbuild suits developers who want fast builds for javascript, typescript, or css projects, while Rolldown suits developers who already use rollup plugins and want a faster bundler.
Are esbuild and Rolldown free?
esbuild: Free and open source. Rolldown: Free and open source.
Is esbuild or Rolldown more popular?
esbuild has more GitHub stars (40.1k) than Rolldown (14k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to esbuild and Rolldown?
Other options people compare them with include Vite, webpack, Parcel, Rspack, Oxc.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.