Claude Desktop Partition Caches
Claude Desktop keeps site-style partition caches under its Partitions folders to isolate embedded web content and background webviews used by the app. Those partitions accumulate Chromium network cache entries, GPU shader cache files, compiled script bytecode, media cache fragments, and other temporary browser assets so screens load faster and repeated requests do not have to be rebuilt each time. Kudu removes only these preview-partition cache files on Windows, leaving sessions, IndexedDB, local storage, service-worker data, offline content, account state, and app settings untouched.
Why clean Claude Desktop Partition Caches?
- Corrupted Chromium network cache entries can make a Claude panel or embedded webview load stale or incomplete content, showing endless spinners, missing UI sections, or pages that never fully refresh
- GPU cache files from an older graphics driver can be invalidated after a driver update, causing black flashes, blank rendered areas, or lag the first time Claude redraws complex interface elements
- Outdated compiled script bytecode in a partition can conflict with a newer app build, leading to a slow first launch, delayed panel rendering, or one-time jank until the cache is rebuilt
- Oversized media and HTTP cache data in Partitions can consume hundreds of megabytes over time, leaving users with unexpectedly high AppData storage use even though chats and settings are not the cause
- Broken cached responses for embedded authentication or preview flows can trap a partition in a bad state, where a subview keeps reloading, shows old content, or fails to display assets that work after a cache reset
- Stale image and font cache entries can cause missing icons, blurred avatars, or incorrect text rendering inside partition-backed views until fresh assets are downloaded again
Cache paths Kudu targets
Windows
%AppData%/Claude/Partitions |
%LocalAppData%/Packages/Claude_pzs8sxrjxfjjc/LocalCache/Roaming/Claude/Partitions |
Common questions about Claude Desktop Partition Caches
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Available on Windows, macOS, and Linux. No account required, no feature gates, no telemetry without consent. All cleaning targets are open source and community-auditable.