ZIP to ZIP
Initializing... drag & drop files here
Supports: ZIP
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
Reset to defaults
Need help?How to Convert ZIP to ZIP (Recompress)
- Upload your ZIP file — Click "+ Add Files" or drag and drop your ZIP archive.
- Set combine mode (optional) — Under "Combine?," choose "Single Archive" to merge all into one ZIP, or "Individual Archives" to create separate ZIPs.
- Convert and download — Click "Convert" and download your recompressed ZIP file.
Why Convert ZIP to ZIP?
Converting a ZIP to a new ZIP recompresses the archive — useful for reducing file size when the original ZIP used weak compression, splitting a large ZIP into individual archives, merging multiple ZIP files into one, or fixing corrupted ZIP files by repacking the contents.
This tool extracts the original ZIP contents and repacks them with optimized compression settings, potentially producing a smaller output file.
ZIP Recompression Use Cases
| Scenario | Combine Setting | Benefit |
|---|---|---|
| Reduce file size | Single Archive | Better compression |
| Split into parts | Individual Archives | One ZIP per file |
| Fix corrupted ZIP | Single Archive | Clean repack |
| Merge multiple ZIPs | Single Archive | One combined archive |
Frequently Asked Questions
Will the output ZIP be smaller?
Potentially. If the original ZIP used weak compression (Store mode or low DEFLATE level), recompression can reduce file size. Already well-compressed ZIPs may not shrink further.
Can I merge multiple ZIP files into one?
Yes. Upload multiple ZIP files and select "Single Archive" to combine all contents into one ZIP.
Can I split a ZIP into individual archives?
Yes. Select "Individual Archives" to create a separate ZIP for each file in the original archive.
Is ZIP format universally supported?
Yes. ZIP is natively supported by Windows Explorer, macOS Finder, and most Linux file managers — no additional software needed.
What compression does the output use?
The output uses optimized DEFLATE compression — the standard ZIP compression algorithm supported by all ZIP tools.