How to Clean Jan AI Local LLM Model Download Cache
Location & Quick Verdict
%UserProfile%\jan\models and %AppData%\jan
Jan AI downloads multi-gigabyte GGUF weights, local inference engine binaries (Nitro/Cortex), and temporary conversational vectors to your user drive.
How Embedded Chromium (Electron / CEF) Caches Bloated Jan AI Local LLM Model Download Cache
Modern web browsers and desktop apps built on Electron, Chromium Embedded Framework (CEF), or WebView2 run a full browser storage engine inside %UserProfile%\jan\models and %AppData%\jan. 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, Jan AI Local LLM Model Download Cache accumulates 6.0 GB – 40.0 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 Jan AI Local LLM Model Download Cache (Read-Only)
$target = "$env:USERPROFILE\jan\models"
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 Quit Jan AI completely from the system tray.
- 2 Press Windows Key + R, type %userprofile%\jan\models, and press Enter.
- 3 Delete model folders you no longer actively query.
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 Jan AI Local LLM Model Download Cache
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 Jan AI Local LLM Model Download Cache are safe to purge and which files remain protected:
| Sub-Folder / Cache Location | Storage Role | Typical Footprint | Deletion Safety |
|---|---|---|---|
| %UserProfile%\jan\models\Cache\Cache_Data | HTTP Disk Cache, Web Bundles & Static Media Chunks | 6.0 GB – 40.0 GB | 🟢 100% Safe |
| %UserProfile%\jan\models\Service Worker\CacheStorage | Offline PWA Assets, Background Sync & Media Blob Storage | 500 MB – 6.5 GB | 🟢 100% Safe |
| %UserProfile%\jan\models\Code Cache\js & wasm | V8 Compiled JavaScript & WebAssembly Bytecode Cache | 250 MB – 2.5 GB | 🟢 100% Safe |
| %UserProfile%\jan\models\GPUCache & DawnCache | Chromium Skia/ANGLE/WebGPU Compiled Shader Cache | 200 MB – 2.0 GB | 🟢 100% Safe |
| %UserProfile%\jan\models\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 Jan AI Local LLM Model Download Cache?
Yes, 100% safe. Frees tens of gigabytes of storage space while keeping your user settings, assistant preferences, and chat exports intact.
How much storage space will cleaning Jan AI Local LLM Model Download Cache free up?
Users typically reclaim 6.0 GB – 40.0 GB on Windows 10 and Windows 11 systems depending on update frequency and active cache retention in %UserProfile%\jan\models and %AppData%\jan.
Will clearing Jan AI Local LLM Model Download Cache 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 %UserProfile%\jan\models and %AppData%\jan only removes temporary media and script caches.
Where is Jan AI Local LLM Model Download Cache located on Windows 10 and Windows 11?
It is stored at %UserProfile%\jan\models and %AppData%\jan. 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 Jan AI Local LLM Model Download Cache Automatically
SWEEPR Cleaner safely clears Jan AI Local LLM Model Download Cache 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.