How to Clean Signal Desktop Electron Cache & Temp Logs
Location & Quick Verdict
%AppData%\Signal\Cache and %AppData%\Signal\logs
Signal Desktop caches GPU textures, spellcheck dictionaries, and diagnostic logs in %AppData%\Signal.
How Embedded Chromium (Electron / CEF) Caches Bloated Signal Desktop Electron Cache & Temp Logs
Modern web browsers and desktop apps built on Electron, Chromium Embedded Framework (CEF), or WebView2 run a full browser storage engine inside %AppData%\Signal\Cache and %AppData%\Signal\logs. Every inline video preview, animated sticker, PWA offline bundle, and compiled V8 JavaScript script is written into disk-backed Cache_Data, Code Cache, Service Worker CacheStorage, and IndexedDB LevelDB tables without strict disk quotas.
Over months of daily usage, Signal Desktop Electron Cache & Temp Logs accumulates 0.8 GB – 4.0 GB of expired media blobs and stale Service Worker caches that are never evicted automatically. Clearing these cache subdirectories forces a clean storage state without deleting your saved passwords, active session cookies, bookmarks, or local databases.
# Inspect current disk footprint of Signal Desktop Electron Cache & Temp Logs (Read-Only)
$target = "$env:APPDATA\Signal\Cache"
Get-ChildItem -Path $target -Recurse -Force -ErrorAction SilentlyContinue |
Measure-Object -Property Length -Sum |
Select-Object Count, @{Name="SizeGB";Expression={[math]::Round($_.Sum / 1GB, 2)}}
Manual Cleaning Instructions
- 1 Close Signal Desktop.
- 2 Press Windows Key + R, type %appdata%\Signal and press Enter.
- 3 Delete 'Cache', 'Code Cache', 'GPUCache', and 'logs' (do NOT delete 'sql' or 'config.json').
Note: If Windows alerts that a file is in use or locked by a background process, close the associated task in Task Manager before deleting, or use SWEEPR Cleaner to release locked handles safely.
Sub-Folders & Cache Locations Breakdown for Signal Desktop Electron Cache & Temp Logs
Modern Windows applications and system services split their disk footprint across multiple sub-directories (`Cache_Data`, `Service Worker\CacheStorage`, `Code Cache`, `GPUCache`, and `Crashpad\reports`). Review which sub-folders inside Signal Desktop Electron Cache & Temp Logs are safe to purge and which files remain protected:
| Sub-Folder / Cache Location | Storage Role | Typical Footprint | Deletion Safety |
|---|---|---|---|
| %AppData%\Signal\Cache\Cache\Cache_Data | HTTP Disk Cache, Web Bundles & Static Media Chunks | 0.8 GB – 4.0 GB | 🟢 100% Safe |
| %AppData%\Signal\Cache\Service Worker\CacheStorage | Offline PWA Assets, Background Sync & Media Blob Storage | 500 MB – 6.5 GB | 🟢 100% Safe |
| %AppData%\Signal\Cache\Code Cache\js & wasm | V8 Compiled JavaScript & WebAssembly Bytecode Cache | 250 MB – 2.5 GB | 🟢 100% Safe |
| %AppData%\Signal\Cache\GPUCache & DawnCache | Chromium Skia/ANGLE/WebGPU Compiled Shader Cache | 200 MB – 2.0 GB | 🟢 100% Safe |
| %AppData%\Signal\Cache\Crashpad\reports | Historical Process Minidump (.dmp) Telemetry Files | 150 MB – 3.0 GB | 🟢 100% Safe |
| Cookies, Login Data, Bookmarks & Local Storage (leveldb) | Active Account Sessions, Saved Passwords & User Preferences | Protected | 🔒 Protected — Never Touched |
Frequently Asked Questions
Is it safe to delete Signal Desktop Electron Cache & Temp Logs?
Yes, 100% safe. Frees disk space safely while keeping your encrypted message database (sql) and linked device keys untouched.
How much storage space will cleaning Signal Desktop Electron Cache & Temp Logs free up?
Users typically reclaim 0.8 GB – 4.0 GB on Windows 10 and Windows 11 systems depending on update frequency and active cache retention in %AppData%\Signal\Cache and %AppData%\Signal\logs.
Will clearing Signal Desktop Electron Cache & Temp Logs sign me out of my accounts or delete my chat history?
No. Authentication tokens, cookies, and bookmarks live in separate profile files (such as Cookies, Login Data, and Local Storage). Cleaning the cache subfolders inside %AppData%\Signal\Cache and %AppData%\Signal\logs only removes temporary media and script caches.
Where is Signal Desktop Electron Cache & Temp Logs located on Windows 10 and Windows 11?
It is stored at %AppData%\Signal\Cache and %AppData%\Signal\logs. You can paste that path directly into the Windows Run dialog (Win + R) or File Explorer address bar to inspect it.
Manual File Explorer vs. 1-Click SWEEPR Cleanup
| Feature | Manual Deletion | SWEEPR Cleaner |
|---|---|---|
| Locked File Handling | Fails on locked processes | Safe background release |
| Accidental Deletion Risk | Moderate (easy to delete wrong folder) | Zero (strict rules & hashes) |
| Safety Undo Rollback | None (Shift+Del is permanent) | 7-Day Automatic Rollback |
| Time Required | 10–20 minutes per app | < 60 seconds across 40+ areas |
Related Windows Cleanup Guides & Hidden Space Hogs
Clean Signal Desktop Electron Cache & Temp Logs Automatically
SWEEPR Cleaner safely clears Signal Desktop Electron Cache & Temp Logs along with 40+ other hidden app folders and leftover files in one click—covering up to 5 devices (Windows, Mac, Android & iOS) with a 7-day undo safety net.