Alternatives to webhint

A customizable linting tool that checks websites for accessibility, speed, compatibility and security problems. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as webhint.

  • SiteOne Crawler

    Open-source website crawler that produces audit reports, offline mirrors and Markdown exports of a site.

    FreeOpen sourceWindowsmacOSLinuxCommand line

    SiteOne Crawler audits whole sites for SEO, security, accessibility and performance with a desktop GUI and CLI, but has no editor integration.

  • Yellow Lab Tools

    An open-source tool that audits a webpage for performance and front-end code quality issues.

    FreeOpen sourceWebSelf-hostedCommand line

    Yellow Lab Tools focuses on performance and front-end code quality under GPL-2.0, as an online tool, CLI and self-hostable service, though development has slowed.

  • Unlighthouse

    Open-source command-line tool that runs Google Lighthouse on every page of a site in parallel.

    FreeOpen sourceCommand line

    Unlighthouse runs Google Lighthouse across every page of a site in parallel under MIT, but requires Node 22 or later and has no browser extension.

  • Lighthouse CI

    A set of tools that runs Lighthouse audits on every commit and tracks results over time.

    FreeOpen sourceCommand line

    Lighthouse CI runs Lighthouse audits on every commit and tracks results between builds, but needs a CI pipeline and lacks editor checks.

  • SortSite

    Website quality scanner testing accessibility, broken links, browser compatibility and SEO against over 1200 checkpoints.

    FreemiumProprietaryWeb

    SortSite scans for accessibility, broken links, compatibility and SEO against over 1200 checkpoints as a freemium web product, with full scans paid.

Also worth comparing

These listings name webhint as their own alternative, so the relationship runs both ways.

  • axe DevTools

    Accessibility testing tools and browser extension from Deque, built on the axe-core rules engine.

    FreemiumProprietaryWebBrowser extension

    webhint is an open-source linter covering accessibility with speed, compatibility and security in the editor, browser and CI, requiring Node.js for the CLI.

  • IBM Equal Access Accessibility Checker

    IBM's open-source browser extension and toolkit for automated accessibility checks of web pages.

    FreeOpen sourceBrowser extensionCommand line

    webhint is an open-source linter covering accessibility plus speed, compatibility and security, available in the browser, editor and CI and built into Edge DevTools.

  • Lighthouse

    Automated audits for performance, accessibility, SEO and best practices.

    FreeOpen sourceWindowsmacOSLinuxWebCommand line

    webhint lints sites for accessibility, speed, compatibility and security in the editor, browser and CI, and needs Node.js for its CLI.

  • Pa11y

    Open-source command-line and dashboard tools that test web pages for accessibility issues automatically.

    FreeOpen sourceSelf-hostedCommand line

    webhint is an open-source linter covering accessibility, speed, compatibility and security across editor, browser and CI, needing Node.js for the CLI.

Similar software

Related functionality, not a direct replacement.

  • Can I use

    A searchable web tool with browser support tables for HTML, CSS, JavaScript and other front-end features.

    FreeProprietaryWeb

  • HTTP Observatory

    Mozilla's web tool that grades a site's HTTP security headers and gives fix recommendations.

    FreeProprietaryWeb

  • PageSpeed Insights

    Google's free web tool that reports Core Web Vitals and Lighthouse results for any URL.

    FreeProprietaryWeb

  • Nu Html Checker

    The W3C's online checker that tests HTML documents against current HTML conformance rules.

    FreeProprietaryWeb