File Joiner

Recombine numbered file parts (like file.zip.001, .002 …) back into the original file, exactly as it was. Pairs with the File Splitter. Everything runs in your browser.

How to use

1. Select all the parts at once.
2. They are joined in name order automatically.
3. Click Join, then download the rebuilt file.

Frequently asked questions

What order are parts joined in?

In numeric name order, so .001 comes before .002, and .009 before .010.

Will the result match the original exactly?

Yes — joining is lossless and rebuilds the original file byte-for-byte.

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