Paste names copied from a file list. Preview Windows-reserved characters and device names, trailing dots/spaces, Unicode normalization, and case-insensitive collisions before you share or move the files. It never opens or renames files.
Paste filenames to create a preview.
| Original name | Proposed name | Notes |
|---|---|---|
| No names checked yet. | ||
This is a portability preview, not a bulk renamer. Windows reserves names such as CON and does not allow < > : " / \\ | ? *; this checker applies those restrictions and catches case-only collisions. Check your destination filesystem’s byte and path-length limits too.