Split / Merge Files
Join several files into one, or cut a large file into fixed-size parts.
Files & batch Client-side Blob slicing
Tool preview
How to use it
- 01
Choose merge or split.
- 02
Drop the files in order.
- 03
Download the result.
Limitations
- ! Merging concatenates raw bytes with no container, so it is meant for split archives, not for joining media.
- ! Everything is processed in memory.
FAQ
How do I reassemble split parts?
Concatenate them in filename order, for example with the copy command on Windows.
Can I merge two videos?
No, joining media needs a real muxer; this only joins bytes.
Is anything uploaded?
No.
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