Lighthouse Audit Summary

Turn Lighthouse scores or a full report into prioritized actions

Enter category scores (0–100)

Overall score

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—

Performance

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—

Accessibility

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—

Best Practices

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—

SEO

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Examples

Quick score read

Input
Performance 62 · Accessibility 88 · Best Practices 92 · SEO 100
Output
Overall 86 (grade B) — weakest area Performance (62), flagged high priority.

Enter just the four scores to get an instant grade and a prioritized checklist without the full report.

Find the biggest win

Input
A full Lighthouse JSON report with several failed Performance audits
Output
Failed audits ranked by estimated savings, e.g. 'Render-blocking resources — 1,500 ms' first.

In report mode the tool sorts failed audits by wasted milliseconds so you fix the highest-impact issue first.

About this tool

Lighthouse audits dozens of signals across Performance, Accessibility, Best Practices, and SEO, and the raw report can be hard to turn into a plan. This tool distills it into an overall grade, the weakest categories, the failed audits with the largest estimated savings, and a ranked checklist of what to fix first.

Enter the four category scores for a quick read, or paste a full Lighthouse JSON report (the output of `lighthouse --output=json` or an export from PageSpeed Insights) to extract category scores and failed audits automatically. Everything is parsed in your browser — nothing is uploaded.

How to use

  1. Choose a mode

    Use Quick scores to enter the four category scores, or Paste report to analyze a full Lighthouse JSON file.

  2. Read the overall grade

    Review the overall score, the weakest category, and the per-category cards.

  3. Work the checklist

    Fix items in priority order (high before low) for the fastest overall improvement.

  4. Triage failed audits

    In report mode, sort the failed-audit table by estimated savings to find the biggest win.

Use cases

Turn a report into a sprint plan

Convert a dense JSON report into a ranked checklist a team can act on in one pass.

Quick health check

Enter the four scores from the Lighthouse UI to get an instant grade without the full report.

Frequently asked questions

Related guides

Turn a Lighthouse Report Into a Plan

Lighthouse produces dozens of audits — this is how to distill them into a ranked action list. Grading thresholds, the failed audits that matter, and prioritizing by estimated savings.

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