System
Snap App Cache
Snap stores per-application data under ~/snap, including Chromium and Electron web caches, GPU shader caches, SQLite browser databases, thumbnail caches, and temporary update artifacts created inside each snap's confined writable area. These files speed up launches, web rendering, media previews, and in-app browsing, but they can become stale after snap revisions, browser engine updates, or graphics driver changes. Kudu removes disposable cache content from ~/snap while leaving documents, profiles, accounts, saved work, settings, and passwords untouched.
Why clean Snap App Cache?
- Old Chromium or Electron HTTP cache entries inside a snap can serve mismatched assets after an app revision, causing blank pages, broken icons, or interface elements that never finish loading
- Invalidated GPUCache data after a Mesa or proprietary driver update can make snapped apps launch to a black window, flicker during scrolling, or stutter until the shader cache is rebuilt
- Accumulated Code Cache and V8 bytecode from previous bundled runtimes wastes space and can cause an unusually slow first launch after updates while the app discards and recompiles stale entries
- Oversized media and thumbnail caches in snapped browsers, chat clients, or editors can fill the home partition, which users notice as low disk warnings or snaps failing to save temporary files
- Corrupted service worker and CacheStorage data inside web-based snaps can leave apps stuck on outdated content, repeated sign-in loops, or offline pages that persist even with a working connection
- SQLite cache databases used by snapped apps can become page-fragmented over time; VACUUM rewrites the database file without deleting rows, reducing wasted space and improving startup or history-loading responsiveness
- Leftover temporary files and partial download artifacts from interrupted snap app updates or in-app downloads can consume hundreds of megabytes and show up as unexplained growth under ~/snap
What gets cleaned
Cache paths Kudu targets
Linux
~/snap |
Frequently asked
Common questions about Snap App Cache
Related cleaners
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