Lighthouse Report Formatter
Paste raw Lighthouse JSON export data to extract structured performance metrics, scores, and clean Markdown summaries.
Paste a valid Lighthouse JSON report and click Format to generate the performance summary.
Core Web Vitals Thresholds Reference
1. LCP (Largest Contentful Paint)
Measures loading performance. Good threshold is ≤ 2.5s.
2. INP (Interaction to Next Paint)
Measures interactivity responsiveness. Good threshold is ≤ 200ms.
3. CLS (Cumulative Layout Shift)
Measures visual stability. Good threshold is ≤ 0.1.