Split Files

Split a large file into smaller numbered parts of a size you choose, so it fits email or upload limits, without uploading it anywhere.

About Split Files

File splitting cuts one file into consecutive byte ranges and saves each range as a separate part. Nothing is compressed or changed: joining the parts in order reproduces the original file exactly. Parts are named after the original with a three-digit suffix so they sort correctly. This tool works on any file type and allows up to 200 parts. Your browser may ask for permission to download several files at once.

How to use Split Files

Choose the file you want to split. It is read by your browser and is not uploaded.
Enter the maximum size of each part in megabytes.
Press "Split and download". The parts download one after another, named with .part001, .part002, and so on.
To rebuild the file later, join the parts in order with a file joiner.

Questions about Split Files

How do I put the parts back together?

Use the Join Files tool on this site and add the parts in numeric order. On Windows you can also run copy /b file.part001 + file.part002 output, and on macOS or Linux cat file.part* > output.

Runs in your browser. Page last updated November 12, 2026.

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