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File Splitter & Joiner

Split a large file into equal parts by size or count, then join the parts back into the original file. Runs entirely on your device.

No uploads

How to use File Splitter & Joiner

  1. 1Open File Splitter & Joiner. It runs in your browser, no sign-up.
  2. 2Drop your file here or choose it. It stays on your device; nothing is uploaded.
  3. 3Adjust the options until the preview looks right.
  4. 4Download the result.

Questions

Why split a file?

To get past attachment or upload size limits, or to fit a big file onto smaller drives. Join the parts back here (or with cat / copy /b).

Is the joined file identical?

Yes — splitting cuts raw bytes, so joining the parts in order rebuilds the exact original.

Is anything uploaded?

No. Files are sliced and joined in your browser.

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