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Join Files

Put a split file back together from its parts.

Files never leave your device.

Options

Add every part, such as video.mp4.001, .002 and .003. They are joined in list order; use the arrows if the order is wrong.

Name for the joined file, including its extension.

  • No sign-up
  • No upload queue
  • No watermark
  • Works offline after first visit

About Join Files

Large files are sometimes sent in pieces named file.001, file.002 and so on. This tool joins those parts back into the original file. Add all the parts, check they are in the right order, and press Join. The result is named after the first part without its number, so movie.mp4.001 becomes movie.mp4. Joining is instant even for very large files, because the parts are linked rather than copied. To make sure nothing went wrong, compare the result with a published checksum.

How to Use It

  1. 01

    Add all parts

    Drop every part, such as .001, .002 and .003, into the box.

  2. 02

    Check the order

    Parts are joined top to bottom. Use the arrows to fix the order.

  3. 03

    Join and download

    Press Join and download the rebuilt file.

Questions

Which files can it join?

Parts made by Split File, 7-Zip, HJSplit and similar tools that cut a file into raw slices. It can't join multi-part RAR or ZIP archives.

What if a part is missing?

The joined file will be incomplete and won't open properly. Make sure every numbered part is added.

How do I know the result is correct?

If the sender gave you a checksum, use the Checksum Calculator on the joined file and compare.

Are my files uploaded?

No. The parts are joined in your browser.

See all file utilities

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