Filename Sanitizer
Clean filenames for Windows, macOS, or cross-platform compatibility, including forbidden characters and reserved DOS names.
What this tool does
Clean filenames for Windows, macOS, or cross-platform compatibility, including forbidden characters and reserved DOS names.
Where this tool is useful
Prepare a list of filenames to copy or rename safely across operating systems.
Example or format details
Prepare a list of filenames to copy or rename safely across operating systems.
How to use Filename Sanitizer
- 1
Enter or paste the text into the labeled fields.
- 2
Adjust the fields and options, then select Run tool.
- 3
Inspect the actual result. Copy the text or download the generated file when appropriate.
Privacy and processing
Entered content and chosen files are processed locally in your browser. No conversion request is sent to a freedropper server.
Common questions
What can I use this for?
Prepare a list of filenames to copy or rename safely across operating systems.
What does the tool accept?
Enter or paste the text into the labeled fields.
What should I check before using the output?
This tool returns proposed names to copy. It does not rename files on your computer; check collisions if two names sanitize to the same result.
Does my input leave my device?
The utility runs in your browser. Selected content is not transmitted to a freedropper conversion service.
How can I reuse the result?
Copy the output or use the download control when the tool produces a file. Check the target application accepts the resulting syntax or file type.