v1.0.0 · Chrome · MV3 · Cache Inspector

CacheSpy

A developer-first Cache Storage and Service Worker inspector. Debug PWA caching, view cached responses, and manage browser caches without digging through DevTools.

Cache Inspector

Cache Storage for example.com 24 entries · 3 caches · 1.4 MB
workbox-precache-v2
/static/js/main.a1b2c3d4.js 200 javascript 245 KB Fresh
/static/css/app.e5f6g7h8.css 200 css 42 KB Fresh
/index.html 200 html 8 KB
runtime-cache
/api/v1/user/profile 200 json 1.2 KB
/images/hero-banner.webp 200 webp 180 KB
Service Worker activated · /sw.js · scope: /

List All Caches

See every Cache Storage entry for the current origin. Entries grouped by cache name with counts and size estimation.

FREE

View Cached URLs

Browse cached URLs organized by cache name. See status codes, content types, and sizes at a glance.

FREE

Search & Filter

Instantly filter cached entries by URL, content type, or cache name. Find any cached resource in seconds.

FREE

Cache Statistics

Total entry count, number of caches, and estimated total size. Quick overview of your caching footprint.

FREE

Service Worker Status

See if a Service Worker is active, waiting, or installing. Visual status indicator with script URL and scope.

FREE

Copy Cached URL

One-click copy of any cached URL to clipboard. Quick access for debugging or sharing.

FREE

Delete Cached Entries

Remove individual cached entries from any cache. Surgical cache invalidation without clearing everything.

PRO

Clear Entire Caches

Wipe an entire named cache in one click. Useful for testing cache-first strategies from scratch.

PRO

Response Headers & Body

View full response headers and body preview for any cached entry. See exactly what your Service Worker cached.

PRO

Cache Freshness Analysis

Analyze cache age, max-age, expires, and TTL remaining. Know which entries are fresh and which are stale.

PRO

Export Cache Manifest

Export the complete cache manifest as structured JSON. Document, audit, or compare cache states across deploys.

PRO

SW Registration Details

Full Service Worker registration info: scope, update-via-cache policy, script URL, and state for every registration.

PRO