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Core Web Vitals JSON Analyzer — Gratis online tool

Parse Lighthouse output voor CWV-scores

Plak Lighthouse JSON of CrUX data → krijg CWV-scores, beoordeling en aanbevelingen. Geen registratie vereist.

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Meer weten

CWV analyzer

How to use this tool

  1. 1

    Enter your CWV values

    LCP, CLS, INP from PageSpeed.

  2. 2

    See grades

    Per metric + overall.

Frequently Asked Questions

Thresholds?
LCP: Good ≤2.5s, Poor >4s. CLS: Good ≤0.1, Poor >0.25. INP: Good ≤200ms, Poor >500ms.

Belangrijkste punten

  • Core Web Vitals JSON Analyzer is a free, browser-based seo & web tool — parse lighthouse output for cwv scores.
  • Nee signup, no downloads, no file uploads. Tools run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Core Web Vitals JSON Analyzer

  1. Open the tool: Launch Core Web Vitals JSON Analyzer on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Core Web Vitals JSON Analyzer — Quick Facts

Prijs
Gratis — geen limieten, geen watermerk, geen paywall
Privacy
Wordt in je browser verwerkt. Tools die een externe dienst nodig hebben, vermelden dat op de pagina. Paginabezoeken worden geteld (Google Analytics).
Platform
Elke moderne browser — desktop, tablet of mobiel
Categorie
SEO & Web Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FunctieDetails
ToolCore Web Vitals JSON Analyzer
CategorieSEO & Web
Aanmelden vereistNee
Bestand uploadenGeen — verwerkt in browser
Mobiel ondersteundVolledig responsive
KostenVoor altijd gratis

Why Use Core Web Vitals JSON Analyzer?

You should try Core Web Vitals JSON Analyzer for a quick, private way to parse lighthouse output for cwv scores. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. Deze tool draait volledig in je browser. Je gegevens worden nooit naar een server geüpload.