Cursor IDE Partitions
Cursor stores per-partition Chromium and Electron runtime data under its Partitions folder for embedded webviews, authentication windows, extensions UI, and other isolated app surfaces. These partitions accumulate browser disk cache entries, HTTP cache records, V8 compiled code and code cache files, GPUCache data, and shader blobs so pages, scripts, and accelerated rendering start faster on later launches. Kudu removes only these rebuildable partition caches when they become stale or oversized, while preserving sessions, persistent site data, settings, accounts, and other user content.
Why clean Cursor IDE Partitions?
- Invalidated V8 compiled code after a Cursor or extension update can make chat, settings, or sign-in views open slowly on first use until the code cache is rebuilt
- Stale Chromium HTTP and disk cache entries can leave embedded pages loading old assets, causing broken UI panels, missing styling, or a webview that keeps showing an outdated state
- GPUCache data from a previous graphics driver version can be reused incorrectly, which often shows up as black panels, flickering webviews, or rendering glitches in hardware-accelerated parts of the interface
- Corrupted shader blobs can cause stutter the first time accelerated views render, or make certain webview surfaces draw incompletely until Cursor regenerates the shader cache
- Oversized partition caches can consume hundreds of megabytes across isolated webviews, leading users to notice AppData growth and slower cleanup or backup operations
- A bad cache entry in one partition can trap only that embedded surface in repeated reloads or blank-page behavior even while the rest of Cursor works normally
- If a partition contains SQLite-backed cache metadata, page fragmentation can waste space and slow lookups over time; a VACUUM-style rebuild rewrites pages compactly without deleting rows, while cache clearing simply removes rebuildable cache records and leaves real user data alone
Cache paths Kudu targets
Windows
%AppData%/Cursor/Partitions |
Common questions about Cursor IDE Partitions
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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.