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Remove special characters from filenames
Strip unsafe characters out of many filenames at once: brackets, quotes, slashes, #, %, & and similar. Letters, digits, spaces, dots, dashes and underscores stay. You see every new name first, and nothing is uploaded.
How to remove special characters from filenames
- 1Drop your files in, or choose a folder
- 2Leave "Remove special characters" ticked
- 3Check the table, then rename or download
- Files with clean names that upload and sync without trouble.
What happens to your files
- One rule keeps the safe set.Letters, digits, space, dot, dash and underscore stay. The rest goes.
- Letters of any language stay.ä, é, ñ and non-Latin letters are kept unless you transliterate.
- Nothing is uploaded.Renaming happens in your browser, on your own device.
What you can do
- Delete every character that is not a letter, digit, space, dot, dash or underscore, so "report (final) #2 & more.pdf" loses the brackets, # and &.
- Pair it with "Spaces to dashes" or "Transliterate" for names that are safe everywhere.
- See old and new names in a table first, and rename in place in Chrome or Edge on a computer, with Undo.
- Download renamed copies as a ZIP in other browsers and on a phone.
Good to know
- The characters are removed, not replaced. "A&B" becomes "AB". If you want a dash instead, use the find and replace fields.
- Only the name is cleaned, not the extension.
- If cleaning makes two names identical, they turn red and saving is blocked until you fix it, for example with numbering.
Questions
Which characters does it remove?
Everything except letters, digits, spaces, dots, dashes and underscores. That covers characters such as \ / : * ? " < > | # % & ( ) [ ] and emoji.
Does it also remove accents?
No, accented letters count as letters and stay. Tick "Transliterate (ä→ae, é→e)" to turn them into plain letters.
Why remove special characters from filenames?
Some systems reject or mangle them: Windows forbids a few, and web addresses and sync tools often trip over them.