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esbuild vs Rspack: catalog facts
esbuild	Rspack
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Very fast builds without a cache TypeScript, JSX and CSS supported without plugins	Compatible with webpack plugins and loaders Fast startup and incremental HMR
Plugin ecosystem is smaller than webpack's Does not type-check TypeScript	Not every webpack plugin is guaranteed to work Requires a Node.js project setup
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.