Fix long paths and bad file names.
Free, open-source Windows tool that finds paths over the 259-character limit and names with trailing dots, reserved names or illegal characters, shows the rename plan first, and fixes them with one-click undo.
LongPathFix-Setup-1.1.0.exe · Requires Windows 10 or 11 (64-bit)
- Version
- v1.1.0
- Platform
- Windows
- Download size
- 54 MB
- Price
- Free
- License
- MIT
Up and running in 3 steps
Install LongPathFix
Run the installer. It is self-contained, so there is nothing else to set up.
Scan a folder
Pick a folder and a path limit, and press Scan to see every problem and the planned new name.
Rename and undo
Review the plan, press Rename, and use History to undo any batch.
What LongPathFix does
Finds what breaks backups
Paths over 259 characters, trailing dots and spaces, reserved names like CON, illegal characters and case clashes.
Plan first
Every rename is listed before anything changes, with limits of 259, 240 or 200 characters.
Names only
Nothing is moved, deleted or rewritten. Names are cut with a short unique suffix and extensions are kept.
Undo any batch
Every rename is logged; History restores the old names, folders first.
Export findings
Save the findings as CSV, including why anything cannot be fixed.
LongPathFix in action
Get LongPathFix
About 54 MB. Requires Windows 10 or 11 (64-bit). Self-contained installer, no separate .NET install needed. Verify it against the published SHA-256 checksums on the release page. Early releases are not code-signed, so Windows SmartScreen may show an "unknown publisher" warning.
Questions, answered
Does LongPathFix collect any data?
No. It is MIT-licensed, open source and makes no network connections.
Does it change file contents?
Never. Only names change, and every rename is logged so it can be undone.
What if a path is too deep to fix?
It is listed with the reason: move the folder closer to the drive root.
Why does Windows SmartScreen show a warning?
Early releases are not code-signed. Verify the installer against the published SHA-256 checksums before running it.
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