Document & Markup Converter
About ZIP File Splitter
The Large ZIP Archive Splitter divides massive `.zip` archives into smaller multi-part ZIP segments (`.z01`, `.z02`, `.zip`) or individual standalone ZIP chunks based on max file size (e.g. 10 MB, 25 MB email limits, 100 MB FAT32 limits).
How to Use ZIP File Splitter
Step 1
Upload your large `.zip` file.
Step 2
Select desired split chunk size (e.g. 25 MB).
Step 3
Inspect the generated parts list.
Step 4
Download the split archive parts.
Practical Use Cases for ZIP File Splitter
Splitting Large Archives for Email Attachment Limits
Divide a 65 MB archive into three 25 MB ZIP chunks to satisfy standard Gmail and Outlook email attachment constraints.
FAT32 USB Drive File Size Limit Compliance
Split massive 8 GB game or system image ZIP files into < 4 GB parts to copy onto FAT32 formatted flash drives.
Input & Output Examples
Splitting 60 MB ZIP into 25 MB Chunks
File: `backup.zip` (60 MB) | Max Chunk Size: 25 MB
Generated 3 parts: `backup.z01` (25 MB), `backup.z02` (25 MB), `backup.zip` (10 MB)
Key Features & Performance
- ✓Split modes: Multi-Part Spanned ZIP (`.z01`, `.z02`, `.zip`) or Independent Standalone ZIP Chunks.
- ✓Custom chunk size thresholds: 10 MB, 25 MB (Email limit), 100 MB, 700 MB (CD), 4 GB (FAT32).
- ✓100% Client-Side memory execution.
- ✓1-Click Download all split parts.
Key Terminology & Definitions
Spanned Multi-Part ZIP
A standardized multi-volume ZIP format where data streams across sequentially numbered extension files (`.z01`, `.z02`) ending with the master `.zip` file.
FAT32 4GB File Limit
The maximum allowable individual file size ($4\\text{ GiB} - 1\\text{ byte}$) on FAT32 filesystems, requiring larger archives to be split.