How to Clean JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches
Location & Quick Verdict
%LocalAppData%\JetBrains\*\caches and log
JetBrains IDEs store huge local history indexes, AST caches, and old IDE version folders inside %LocalAppData%\JetBrains.
Why Package Tarballs, Symbol Indexes & Build Artifacts Pile Up in JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches
Developer toolchains, language package managers, and modern IDEs cache every downloaded dependency version, pre-compiled wheel/crate tarball, C++/Rust incremental build target, and Language Server Protocol (LSP) AST index inside %LocalAppData%\JetBrains\*\caches and log. Because dependency lockfiles evolve every week, historical versions from old branches remain cached indefinitely—turning JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches into a multi-gigabyte graveyard of thousands of small files.
Thousands of small cache entries inside %LocalAppData%\JetBrains\*\caches and log also degrade Windows Defender real-time filesystem scanning and slow down backup indexing. Cleaning JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches reclaims 3.0 GB – 25.0 GB of SSD capacity while preserving your active source code repositories, .env secrets, SSH keys, and workspace configurations.
# Inspect current disk footprint of JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches (Read-Only)
$target = "$env:LOCALAPPDATA\JetBrains\*\caches"
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 all JetBrains IDEs.
- 2 Press Windows Key + R, type %localappdata%\JetBrains and press Enter.
- 3 Delete folders belonging to older uninstalled IDE versions (e.g., IdeaIC2024.1) and clear the 'log' directories.
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 JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches
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 JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches are safe to purge and which files remain protected:
| Sub-Folder / Cache Location | Storage Role | Typical Footprint | Deletion Safety |
|---|---|---|---|
| %LocalAppData%\JetBrains\*\caches | Content-Addressable Package Tarballs, Wheels & Build Artifacts | 3.0 GB – 25.0 GB | 🟢 100% Safe (Re-downloads on Build) |
| %LocalAppData%\JetBrains\*\caches\wrapper\dists / _cacache | Historical Toolchain Distributions & Integrity Blobs | 1.5 GB – 15.0 GB | 🟢 100% Safe |
| %LocalAppData%\JetBrains\*\caches\logs & crashpad | Compiler Diagnostics, Daemon Logs & Crash Snapshots | 150 MB – 2.5 GB | 🟢 100% Safe |
| Source Repositories, .env Files & SSH/API Keys | Working Git Trees, Local Databases & Credentials | Protected | 🔒 Protected — Never Touched |
Frequently Asked Questions
Is it safe to delete JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches?
Yes, 100% safe. Deleting old IDE version caches reclaims 10+ GB without touching your settings or plugins in %AppData%\JetBrains.
How much storage space will cleaning JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches free up?
Users typically reclaim 3.0 GB – 25.0 GB on Windows 10 and Windows 11 systems depending on update frequency and active cache retention in %LocalAppData%\JetBrains\*\caches and log.
Will cleaning JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches break my active local development projects?
No. Installed dependencies inside your project workspaces remain intact. Cleaning JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches only clears the global download cache and historical build artifacts; any package needed in the future is transparently fetched on demand.
Where is JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches located on Windows 10 and Windows 11?
It is stored at %LocalAppData%\JetBrains\*\caches and log. 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 JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches Automatically
SWEEPR Cleaner safely clears JetBrains IDE (IntelliJ, PyCharm, WebStorm, RustRover) Caches 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.