Split Archive.
Split a large archive into smaller, independently-openable ZIP parts. Perfect for email attachment limits or cloud upload restrictions.
1. Select archive
Drop an archive here or click to browse
Select a file
Up to 2 GB per file.
How to use this tool
Split a large archive into smaller parts that each open independently.
Open the Split Archive tool
Visit makemyzip.com/split-archive. Splitting happens in your browser; nothing uploads.
Drop the archive
Drag the source archive onto the dropzone. Files are read into memory for re-packing.
Set the maximum part size
Choose a max size per part (e.g. 25 MB for email, 100 MB for cloud uploads). The tool packs whole files into each part until the limit is reached.
Download every part
Each part downloads as part1.zip, part2.zip, and so on. Every part opens on its own with any standard ZIP tool.
Frequently asked questions
Are the parts a true spanned archive?
No. Spanned ZIPs (.z01, .z02, ...) require all parts to reconstruct the original. Our split parts are independent ZIPs — each one opens on its own without the others.
What if a single file is bigger than the max part size?
That file is placed alone in its own part, which exceeds the limit. The tool will not slice individual files because the resulting fragments would not be openable.
How do I reassemble the parts?
You do not need to. Each part contains a complete subset of files. Open each part, extract, and the union is the original.
Does compression change after splitting?
No — files keep their original compression. Splitting only changes how files are grouped across multiple ZIPs.
Related tools
3 picksConvert Archive
Convert archives between formats — ZIP to 7z, TAR to ZIP, and more.
Merge Archives
Combine multiple archives into a single file. Handle filename conflicts automatically.
Add Files to ZIP
Drop an existing ZIP and new files, get back a merged ZIP with rename, overwrite, or skip for conflicts.