Rename Files for Application Uploads
Give prepared attachments clear filenames while preserving their file types. Download a renamed copy without re-encoding its contents.
Rename files
Free · On your device1 Choose files2 Set requirements3 Preview & download
Files stay with you
Your selected files are processed in your browser.
Check the final size
See actual output size before downloading.
Keep your originals
Every change creates a separate copy.
How to use this tool
- Choose the file to rename.
- Enter a clear base name matching the receiving instructions.
- Download the renamed copy and verify the name and extension.
What to check before downloading
Renaming does not convert the file type or reduce its bytes. Use the image converter or PDF tools for real content transformations.
Common questions
Can I turn PNG into JPG by renaming it?
No. The encoded data would still be PNG. Use Convert image format to create actual JPEG output.
Do I need to upload files to a server?
No. This version processes selected files in your browser. Website assets still load from the hosting service. See our privacy information and file limits.