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webhint vs Lighthouse: catalog facts
webhint	Lighthouse
Free Free open-source project hosted by the OpenJS Foundation.	Free The open-source tool is available without a license fee.
Browser extension, Command line	Windows, macOS, Linux, Web, Command line
Same checks available in the editor, the browser and CI Built into Microsoft Edge DevTools	Turns vague performance complaints into a specific, prioritised list Runs in CI as well as in the browser, so regressions can be caught
The CLI requires Node.js and npx Aimed at developers rather than site owners who want a one-click report	Scores vary between runs and depend heavily on the machine and network A good score is not the same as a fast experience for real users
Downloadable app, Browser extension	Downloadable app
Open source	Open source
License not stated	License: Apache-2.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

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