Slice oversized ZIP archives into smaller, self-contained sub-archives by setting custom MB or KB size limits 100% locally in your web browser. Ideal for file transfer caps & email attachments.
Select or drop your large master .zip archive into the drop zone.
Enter your preferred volume size limit (e.g. 5 MB or 500 KB) in the options bar.
Click "Split ZIP" to slice the archive into smaller volumes and download parts individually or all at once.
Partitioning takes place strictly inside your browser RAM tab, protecting confidential documents from remote cloud inspection.
Generates self-contained valid ZIP sub-archives so recipients can open individual segments without needing multi-volume joiners.
Adjust max part sizes to match email provider upload caps (e.g. 10MB or 25MB) instantly.
Partitioning Large Archives for Upload Limits & Email Attachments: Splitting oversized .zip files into smaller sub-archives (e.g., 25MB chunks for Gmail attachments or 100MB volumes for cloud storage limits) overcomes strict file size transfer restrictions.
Target Volume Slicing vs. Standalone Zip Sub-Archives: Zip splitting can partition archives in two distinct ways: creating spanned multi-part files (.z01, .z02, .zip) or dividing file entries into standalone, independently extractable sub-zip files.
100% Client-Side Binary Slicing Privacy: Byte slicing, Central Directory rebuilding, and sub-archive generation occur 100% locally in web browser RAM. Oversized backup files and private datasets are partitioned without network uploading.