Free File & Data Tools
Filename Cleaner
Normalize batches of filenames with safe characters, consistent case, and chosen separators.
What this tool does
Make production filenames consistent before they multiply.
The cleaner normalizes accents, spaces, punctuation, case, and repeated separators across one filename per line while preserving file extensions.
It plans safer names but does not rename files on the device; the cleaned list must be copied into the actual file workflow.
Use the tool
Clean a batch of filenames
Paste one filename per line, choose the separator and case, then copy the normalized result.
Enter one filename per line. Extensions are preserved and normalized to lowercase.
Clean filenames
client-logo-final-v3.png homepage-hero-2026-11-11.jpg cafe-campaign-approved.pdf
How to use it
Three quick steps
- 1Paste one current filename per line.
- 2Choose hyphens or underscores and whether names should be lowercase.
- 3Copy the list and apply it carefully in the source-of-truth file system.
Worked example
Normalize campaign exports
Convert “Client Logo FINAL v3!!.PNG” using lowercase and hyphens.
FAQ
Questions about the filename cleaner
Practical details about using the tool and understanding its result.
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