Epic Games Launcher
Epic Games Launcher stores Chromium Embedded Framework web cache data for its storefront and library interface, including HTTP cache entries, cookies, IndexedDB and local storage records, GPUCache files, and compiled web assets under webcache folders such as webcache_4430. It also accumulates launcher logs, temporary intermediate files, and on Windows a VaultCache of downloaded Marketplace and Unreal Engine asset packages kept for reuse. Kudu clears these temporary web, log, and asset cache files when they become stale or oversized, without touching installed games, Unreal projects, account data, saved passwords, or launcher settings.
Why clean Epic Games Launcher?
- Corrupted CEF web cache files can leave the Store or Library stuck on a blank page, spinning loader, or partially rendered tabs even though the launcher process opens normally
- Expired or inconsistent cached storefront data can make owned games, Marketplace items, or download status appear wrong until the launcher refetches fresh data from Epic
- GPUCache entries compiled against an older graphics driver can become invalid after a driver update, causing flickering panels, black windows, or sluggish UI animation until the cache is rebuilt
- Oversized webcache folders full of old HTTP objects, IndexedDB records, and local storage data can noticeably slow startup and navigation between Store, Library, and Unreal Engine sections
- Launcher log files can grow large during repeated sign-in failures, download errors, or crash loops, wasting disk space and making each new troubleshooting session append even more noise
- On Windows, VaultCache keeps local copies of Marketplace and Unreal Engine asset downloads after import, so disk space stays consumed even when the assets are already added to projects
- Intermediate browser and launcher databases can suffer SQLite page fragmentation over time; VACUUM rewrites the database into a compact file without deleting rows, reducing bloat and helping stale state clear cleanly
Cache paths Kudu targets
Windows
%LocalAppData%/EpicGamesLauncher/Saved/webcache |
%LocalAppData%/EpicGamesLauncher/Saved/webcache_4430 |
%LocalAppData%/EpicGamesLauncher/Saved/Logs |
%LocalAppData%/EpicGamesLauncher/Intermediate |
%ProgramData%/Epic/EpicGamesLauncher/VaultCache |
macOS
~/Library/Application Support/Epic/EpicGamesLauncher/Saved/webcache |
~/Library/Logs/EpicGamesLauncher |
Common questions about Epic Games Launcher
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.