PWA & Installability Inspector
Instantly audit any website for Progressive Web App readiness — Manifest, Service Worker, icons, offline & Fugu APIs — with actionable, one-click fixes.
Open source (MIT) · No tracking · Runs entirely in your browser
Instantly audit any website for Progressive Web App readiness — Manifest, Service Worker, icons, offline & Fugu APIs — with actionable, one-click fixes.
Open source (MIT) · No tracking · Runs entirely in your browserA focused, deep audit of everything that makes a PWA installable.
A clear yes/no on whether Chrome’s install prompt will fire — with the reason for anything missing.
Per-field validation (name, start_url, display, scope, icons, id…) with concrete fixes.
Checks 192/512, maskable coverage, verifies icons load and that declared sizes are real.
Registration, scope, state, and whether it actually controls the page.
Checks service-worker control and whether start_url is cached for offline.
Shows which Fugu APIs the browser supports and which the site actually uses.
Export or fix the manifest, build a full icon set from one image, copy ready snippets.
No analytics, no telemetry, no servers. Everything runs locally.
MIT-licensed, no obfuscation, no hidden calls — read exactly what it does on GitHub.
The full report: verdict, findings with fixes, capabilities, and generators.
Your data stays yours. This extension collects nothing — no analytics, no telemetry, no account. It only reads the page you choose to inspect, entirely in your browser. Read the full Privacy Policy.