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Rspack vs esbuild: catalog facts
Rspack	esbuild
Best for: Speeding up existing webpack projects without a full rewrite	Best for: Web developers who want fast bundling and minification
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Compatible with webpack plugins and loaders Fast startup and incremental HMR All 4 strengths for Rspack Compatible with webpack plugins and loaders Fast startup and incremental HMR Code splitting and tree shaking built in Framework agnostic	Very fast builds without a cache TypeScript, JSX and CSS supported without plugins All 4 strengths for esbuild Very fast builds without a cache TypeScript, JSX and CSS supported without plugins Tree shaking, minification and source maps CLI, JavaScript and Go APIs
Not every webpack plugin is guaranteed to work Requires a Node.js project setup	Plugin ecosystem is smaller than webpack's Does not type-check TypeScript
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for Rspack rspack.rs Catalog checked October 1, 2026	Official website Full listing and sources Sources for esbuild esbuild.github.io Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.