Build a ZIP, then split it into fixed-size parts (.zip.001, .zip.002, …) for email attachment limits, FAT32 volumes, or USB drives. Browser-native.
Per-job file size, entry count, and batch caps for Multi-Part Creator. Limits apply to every Archive tool in JAD Apps; upgrade for larger uploads and bigger batches.
| Tier | Max archive size | Max entries / archive | Max files per batch |
|---|---|---|---|
| Free | 47.7 MB | 500 | 1 |
| Pro | 476.8 MB | 50,000 | 20 |
| Developer | 1.86 GB | 50,000 | 20 |
This tool requires the Pro plan or higher.
Drop files and choose a part size (5 MB, 25 MB, 50 MB, custom)
We build a ZIP and slice the resulting bytes into ordered parts named .zip.001, .zip.002…
Download every part — concatenate with cat (Unix) or copy /b (Windows) to reassemble
0 bytes uploaded. Multi-Part Archive Creator runs entirely in your browser using fflate, zip.js, and libarchive WASM. Your archive files never leave your device.
Most unzippers (7-Zip, WinRAR, Keka) treat .zip.001 as the start of a multi-part archive automatically. If yours doesn't, concatenate first: cat file.zip.* > file.zip on Unix, or copy /b file.zip.* file.zip on Windows.
True multi-volume requires the ZIP64 extension and is not universally supported. Fixed-size byte slicing produces parts every unzipper can rejoin, with no compatibility surprises.
Gmail: 25 MB. Outlook.com: 33 MB. Most enterprise mail servers: 25 MB. We default to 25 MB for safety; the slider goes from 1 MB to 4 GB.
Take an existing ZIP and split it into N parts of fixed byte size or fixed entry count. Faster than rebuilding from source files. Browser-native.
Open toolDrop files and get a perfectly compressed ZIP with the optimal speed/size trade-off. Powered by fflate level 6 — the universal sweet spot. Zero upload.
Open toolBundle files into a ZIP with WinZip-compatible AES-256 encryption. Powered by zip.js — your files and password never leave your device.
Open tool