Split Large File
Split Large File online — Break a big file into smaller numbered parts you can rejoin. 100% in your browser, no upload.
🔒 Archives are built and opened on your device — contents never touch a server.
Split Large File: break a big file into smaller numbered parts you can rejoin. Built on your device with no upload — even confidential files stay private.
About Split Large File
Split Large File in your browser. Break a big file into smaller numbered parts you can rejoin. Splits/rejoins with simple byte slicing — entirely offline, so your files never leave your device.
How to use Split Large File
- 1Drop the large file and set the part size.
- 2The result is created instantly.
- 3Download the output.
Why use Split Large File?
- ✓A quick split large file without WinRAR, 7-Zip or an upload site.
- ✓Private — files are processed locally.
- ✓Works on desktop and mobile in any modern browser.
Frequently asked questions
How do I split large file?+
Drop your file(s) here and the tool splits it into numbered parts — all in your browser.
Is my data uploaded?+
No. Split Large File runs entirely on your device, so even sensitive archives never touch a server.
How do I rejoin the parts later?+
Use the "Join File Parts" tool and drop every .part file at once — they're rejoined in numeric order into the original file.
Is there a size limit?+
No fixed limit, but very large files use more memory since everything is processed in the browser. Splitting huge files first can help.
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