About this tool
A suffix here means text at the end of the base name, not the extension. The tool combines photo.jpg with -edited to create photo-edited.jpg, making copies easier to identify.
How to use
- Select the files that need a suffix.
- Enter a suffix, such as -edited or -backup.
- Check that the suffix appears before the extension and resolve any conflicts.
- Download file copies or a ZIP.
Features
- Inserts the suffix before the extension, avoiding names such as photo.jpg-edited.
- An extensionless name such as README can become README-old.
- Recognizes common compound extensions such as .tar.gz to create archive-backup.tar.gz.
Suffixes and extensions
- Your browser does not modify the original files on your computer. This tool creates downloadable files with new names.
- Recognizes common compound extensions such as .tar.gz, .tar.bz2, .tar.xz, .user.js, .min.js, .min.css, and .d.ts by default. Other names use the part after the last dot as the extension.
- The suffix goes at the end of the base name. When compound extensions are recognized, it goes before the entire compound extension.
Limits
- Select up to 1,000 files at a time. When downloading multiple files as a ZIP, their combined original size must not exceed 100 MiB.
- Filenames must not include folder paths. Adjust the rules if a name is too long, empty, or conflicts with another name.
- File contents stay unchanged; only the download name or ZIP entry name changes. Keep your originals and check the preview.
Privacy
All files are processed only in your browser and are never uploaded to a server.
File names, entered text, and results are processed only in your current browser. Your input is not saved automatically. Download any results you want to keep before clearing the tool or leaving the page.
FAQ
Is the suffix the file extension?
No. It is extra text at the end of the base name, such as -edited in photo-edited.jpg. The extension is still .jpg.
How is archive.tar.gz handled?
With compound extension recognition enabled, adding -backup produces archive-backup.tar.gz and preserves the full .tar.gz extension.
Can I use this with files that have no extension?
Yes. For example, adding -old to README produces README-old.
Can the browser rename the original files on my computer?
No. This tool creates downloads with new names. Your original files are not renamed, moved, or overwritten.
How do I get the processed files?
Review the original and new names first. Download a single file directly, or download multiple files as a ZIP and extract the renamed copies.
Will the file contents change?
No. Renaming only changes the download name. The original bytes are preserved: images are not re-encoded, and text encoding is not changed.