Split a file
Numbered pieces small enough to send.
Drop files here
or click to choose from your device
Up to 3 files per runUp to 20 MB per file10 runs per dayRemove limits with Pro✓ Works offline
Your files stay on your device
This tool runs entirely in your browser. Nothing is uploaded, nothing is stored, and you can even turn off your internet connection before you start.
How it works
- Add the file. Any file: a video, an archive, a disk image, anything.
- Choose how big each piece should be. 25 MB is the usual answer, because that is what Gmail accepts.
- Press split. You get file.001, file.002 and so on, in order.
- Send them all. Whoever receives them puts them back together with our join tool, or with 7-Zip or cat.
Frequently asked questions
- Does this compress the file?
- No. The bytes are cut where you asked and nothing else happens to them, so the pieces add up to exactly the original size. If you want it smaller, zip it first and split the zip.
- Can the pieces be put back together without this site?
- Yes, which is the point of the naming. On a Mac or Linux, `cat file.001 file.002 > file`. On Windows, `copy /b file.001+file.002 file`. 7-Zip and WinRAR also recognise the pattern.
- Is a piece on its own usable?
- No. Each piece is a slice of bytes from the middle of a file, not a file in its own right. They only mean anything joined back up, in order.
- Is my file uploaded?
- No. The slicing happens in your browser. A 2 GB file never leaves your computer.
Related tools
⋈ Join split files The pieces back into the file they came from. ☷ Create a ZIP Bundle files into one archive. Nothing is uploaded, so nothing has to be trusted. ☷ Extract a ZIP Open an archive and take out the files, on a device that has no unzip program. ⇲ PDF tools Compress PDF Make a PDF smaller for email or upload limits without sending it to anyone.