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PWA Readiness Scanner — Free Online Tool

Audit manifest.json + service worker

Paste manifest.json → check PWA requirements. Icons, display, start_url, theme_color.

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PWA readiness scanner

How to use this tool

  1. 1

    Paste manifest.json

  2. 2

    See PWA checklist

Frequently Asked Questions

Is my site installable?
Needs: manifest.json + icons (192px + 512px) + service worker + HTTPS + start_url + display: standalone/fullscreen.

Key Takeaways

  • PWA Readiness Scanner is a free, browser-based seo & web tool — audit manifest.json + service worker.
  • No signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use PWA Readiness Scanner

  1. Open the tool: Launch PWA Readiness Scanner 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.

PWA Readiness Scanner — Quick Facts

Price
Free — no limits, no watermarks, no paywalls
Privacy
100% browser-based — no data is sent to any server
Platform
Any modern browser on desktop, tablet, or mobile
Category
SEO & Web Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FeatureDetails
ToolPWA Readiness Scanner
CategorySEO & Web
Signup RequiredNo
File UploadNone — processed in browser
Mobile SupportFully responsive
CostFree forever

Why Use PWA Readiness Scanner?

You should try PWA Readiness Scanner for a quick, private way to audit manifest.json + service worker. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

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. This tool runs entirely in your browser. Your data is never uploaded to any server.