Postman
Postman’s desktop app runs on Electron and stores Chromium disk cache entries, V8 Code Cache bytecode, and GPUCache shader and rendering data under its profile folder to speed up loading the request builder, collections sidebar, embedded web views, and hardware-accelerated UI. When those cache files no longer match a newer Postman build, changed runtime assets, or an updated graphics driver, the app can reuse stale data and behave oddly. Kudu removes only these disposable cache folders so Postman can rebuild them cleanly, without touching your collections, environments, history, accounts, or saved settings.
Why clean Postman?
- Invalidated V8 Code Cache after a Postman update can make the first launch drag or leave panes half-rendered until Electron recompiles the app code
- Corrupted Chromium Cache_Data entries can cause the sign-in screen, release notes, or embedded documentation views to load blank or show outdated content
- A stale disk cache may keep serving old web assets, so workspace UI changes or synced elements appear inconsistent until the cache is rebuilt
- GPUCache data from a previous graphics driver version can trigger black windows, flickering panels, or sluggish scrolling in Postman’s hardware-accelerated interface
- Broken cached responses for embedded web content can lead to login loops, missing images, or repeated prompts even though your network connection is fine
- Oversized Electron cache folders waste disk space and can noticeably slow profile backup, antivirus scans, and roaming profile sync on Windows
- If Postman crashes during shutdown, partially written cache files can cause long startups, white screens, or unresponsive tabs on the next launch
Cache paths Kudu targets
Windows
%AppData%/Postman/Cache/Cache_Data |
%AppData%/Postman/GPUCache |
macOS
~/Library/Application Support/Postman/Cache/Cache_Data |
~/Library/Application Support/Postman/Code Cache |
~/Library/Application Support/Postman/GPUCache |
Linux
~/.config/Postman/Cache/Cache_Data |
~/.config/Postman/Code Cache |
~/.config/Postman/GPUCache |
Common questions about Postman
Download Kudu and reclaim your disk space.
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.