Cross-Platform Filename Check
Check names for reserved characters, Windows device names, length limits and case-insensitive collisions.
It is only processed in the browser, not uploading or saving. Leaving the page will be cleared; the calculation can also be cleared and the result can be discarded. Do not enter other people's credentials or private keys.
Cross-Platform Filename Check User manual
- Fill in the parameters or select the file according to the form, and check the unit and format first.
- Check a list containing CON.txt, report?.csv and case variants of the same filename.
- Click the processing button to view the results, you can copy or download and save.
Calculation method and processing rules
Inspect each name without opening or renaming files; compare NFC-normalised, case-folded names for collisions.
scope of use
Supports up to 200 names, each at most 1,000 characters. No real files are read or renamed; this does not cover every operating system or filesystem.
Will the input content be saved on the server?
This tool handles input in the browser, and does not upload files or form content. Typing practice scores are only saved in the native browser.
Why may the result be different from other tools?
Supports up to 200 names, each at most 1,000 characters. No real files are read or renamed; this does not cover every operating system or filesystem. Please compare the input unit, rounding method, applicable rules and data version first.