What Lighthouse is

The extension runs a suite of automated audits against the current page and generates a shareable report with opportunities, diagnostics, and links to remediation guidance.

Feature coverage

  • Performance and Core Web Vitals audits
  • Accessibility and SEO checks
  • Shareable diagnostic reports

What stands out

  • Well-documented open-source audit engine
  • Large public adoption
  • Actionable links from failed checks

Tradeoffs to know

  • Automated accessibility checks are incomplete
  • Results can vary with device and network conditions
  • Many workflows already have Lighthouse built into DevTools

Permissions and privacy

Page access

Developer extensions can inspect the active page, its markup, or application state. Use a separate browser profile when debugging sensitive production or customer data.

Data notes

Inspected source, network details, or application state may be sensitive. Check telemetry defaults and avoid exposing secrets while an extension has access to development tools.

Pricing

Free and open source. Pricing and plan limits change more often than store metadata, so use the linked developer page as the final check before subscribing.

Alternatives

AlternativeReact Developer ToolsAlternativeWappalyzer

Sources

We used the official Chrome Web Store listing and first-party developer material. Public metrics can change after the fact-check date.

  1. Chrome Web Store listing

    Rating, rating count, public users, version, update date, and publisher disclosures verified 2026-08-30.

  2. Lighthouse product documentation

    First-party product, feature, support, or project documentation used for workflow context.

  3. Extension Reviewer methodology

    How public claims, permissions, evidence, and tradeoffs are reviewed.

View in Chrome Web Store Developer site

More in Developer tools

See the developer tools guide