Extract File Extension

Related tools

• Filename Sanitizer
• Remove Filename Spaces
• Change File Extension
• Split File

How it works

1. 1

   Type or paste a filename

   e.g. "photo.final.JPG".

2. 2

   Extension shown instantly

   Everything after the last dot, without it.

3. 3

   Copy the result

   "(no extension)" is shown if the filename has none.

FAQ

What if the filename has multiple dots?

Only the part after the last dot is treated as the extension, e.g. "photo.final.jpg" → "jpg".

What about a dotfile like ".gitignore"?

A leading dot with nothing before it is not treated as an extension separator, so ".gitignore" has no extension.

Does this tool upload my filename anywhere?

No — it runs entirely in your browser.