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A quick way to understand who this helps, what it solves, and where it connects next.
Content managers, support teams, founders, marketers, and operators cleaning filenames for handoff or storage.
Fixing filenames as text when the job is cleanup, not file-upload batch renaming.
Capture filename-cleaner intent without duplicating the existing SEO batch renamer.
Cleanor Labs
These sections explain the job in plain language and set expectations for what the tool should do well.
To clean a filename, paste one name or a list of names (one per line) into Filename Cleaner. The tool processes the text instantly in your browser, replacing spaces and special characters with safe equivalents and converting accented letters to ASCII so the result works across Windows, macOS, Linux, and the web.
Because Filename Cleaner is a text utility, it never touches real files on your disk. It cleans the pasted filename text only, then gives you the corrected names to copy back. This makes it safe to test naming conventions without risk of renaming anything by accident.
When a name includes an extension such as .pdf or .jpg, the cleaner detects it and leaves it intact, sanitizing only the base name. That keeps your files openable while removing the characters that break uploads, URLs, and command-line scripts.
Sanitizing file names prevents broken links, failed uploads, and sync errors. Characters like slashes, colons, question marks, and emoji are reserved or unsafe on many systems, and spaces or accented letters can corrupt URLs and confuse scripts. Cleaning names up front avoids these problems.
This tool is useful for anyone preparing files for the web, a shared drive, or an automated pipeline. Developers, content teams, and anyone batch-renaming downloads can paste a list and get consistent, portable names in one step, all without installing software.
Short answers for the questions people usually have before trying a utility like this.
Yes. Filename Cleaner is completely free to use, with no account or sign-up required, and it runs entirely in your browser.
No. Filename Cleaner works on pasted filename text only. It never uploads files and never renames anything on your disk.
Yes. When a filename includes an extension such as .png or .docx, the cleaner preserves it and sanitizes only the base name.
Yes. Paste a newline-separated list of filenames and the tool cleans every line at once, returning a matching list of safe names.
Yes. All processing happens locally in your browser, so the names you paste never leave your device.
Every tool on Cleanor is free with no sign-up, no credits, and no limits. Files are processed privately in your browser. Looking for on-device phone cleanup and Premium features? That lives in the Cleanor app.
Paste one filename or a newline-separated list, preserve extensions, and clean the names into safer ASCII-first output locally.