How to use this tool
- Choose your file or try the example.
- Run the tool and check the result.
- Save the result where a download is available.
Supported features & limits
Use {name} for the original name and {n} for a sequence number. Extensions are preserved. Originals are never modified. Duplicate output names are rejected. Maximum 100 files and 50 MB total.
What happens to my files?
Your browser reads the file locally. File contents are not sent to our server. Closing or resetting this page clears the working result. Downloaded copies remain on your device.
Maintained by Roman Zmazhenko. Updated 1 November 2026.