Split Large File
Split a large file into fixed-size parts that fit upload limits.
Files & batch Client-side Blob slicing
Tool preview
How to use it
- 01
Drop the file.
- 02
Set the part size in megabytes.
- 03
Download the zip of parts.
Limitations
- ! The parts are packed into a zip, so the download is roughly the original size plus overhead.
- ! Reassembly must be done manually with the same order.
FAQ
How do I put the parts back together?
Concatenate them in filename order, for example with the copy command on Windows.
Can the parts be compressed?
No, they are stored as-is inside the zip.
Is the file uploaded?
No, slicing happens locally.
Files never leave your device
Processing happens in your browser using the File API, WebAssembly and Web Workers. There is no upload endpoint.
Technical details
- Processing
- Client-side
- Implementation
- Blob slicing
- Category
- Files & batch
- Network requests
- None while processing