Unlighthouse

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

FreeOpen sourceCommand line
Official websiteunlighthouse.devSource codegithub.comDocumentationunlighthouse.dev

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About Unlighthouse

Unlighthouse discovers a site's URLs through robots.txt, sitemap.xml and internal links, then runs Lighthouse audits on them in parallel and combines the results into one report. Dynamic routes are sampled to cut scan time, and a local web interface lets you search, sort and re-scan pages.

Reports include performance, SEO details such as titles and share images, and an accessibility summary with contrast issues. It needs Node 22 or later and can run from the CLI, in CI, or through Nuxt, Vite and Webpack integrations.

Strengths

  • Audits a whole site rather than one page
  • Automatic URL discovery and parallel scanning
  • Local interface for browsing results
  • Runs in CI and build tool integrations

Limitations

  • Requires Node 22 or later
  • Large sites still take time to scan

Details

Pricing
FreeFree and open source under the MIT licence, funded by sponsors.
License
MIT
Developer
Harlan Wilton
Platforms
Command line
How it runs
Downloadable app
Account
Not required
Best suited for
Running Lighthouse audits across an entire website at once
Last verified
Added
Provenance
Facts checked against the developer's own pages and store listings, 1 sources on file.

Alternatives to Unlighthouse

Compare all

Software that can replace Unlighthouse for an important use case, and what changes if you switch.

  • Experte Page Speed Test

    A free bulk page speed test that runs PageSpeed Insights metrics across many URLs at once.

    FreeProprietaryWeb

    Experte Page Speed Test runs PageSpeed Insights and Lighthouse metrics across many URLs online with nothing to install, but crawls stop at 60 seconds and 500 URLs.

  • 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 on every commit and tracks changes between builds, focusing on configured URLs in a pipeline rather than discovering a whole site.

  • Treo

    A web dashboard for tracking Core Web Vitals across sites using Chrome UX Report and Lighthouse data.

    FreemiumProprietaryWeb

    Treo is a hosted freemium dashboard combining Lighthouse lab tests with CrUX field data and sitemap scans, replacing a local open-source CLI with a service needing a paid plan.

  • sitespeed.io

    An open-source tool for measuring, analysing and monitoring the performance of web pages.

    FreeOpen sourceCommand line

    sitespeed.io is an open-source command-line tool with video, HAR waterfalls and scripted journeys, sending metrics to your own Graphite or InfluxDB for monitoring.

Unlighthouse as an alternative

Listings that name Unlighthouse as an alternative.

  • Lighthouse

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

    FreeOpen sourceWindowsmacOSLinuxWebCommand line

    Unlighthouse runs Lighthouse across every page of a site in parallel with URL discovery, and it needs Node 22 or later.

  • webhint

    A customizable linting tool that checks websites for accessibility, speed, compatibility and security problems.

    FreeOpen sourceBrowser extensionCommand 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.

  • Yellow Lab Tools

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

    FreeOpen sourceWebSelf-hostedCommand line

    Unlighthouse is an open-source MIT-licensed CLI that runs Lighthouse on every page of a site in parallel, requiring Node 22 or later.

Similar software

Related functionality, not necessarily a direct replacement.

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