ZIP to 7Z
Convert ZIP archives to the 7z format with LZMA2 compression. Smaller files, stronger encryption.
Free & unlimited
Processed on our servers and deleted right after. Never stored or shared.
About this tool
- 1
Upload a ZIP file
Select the ZIP archive you want to convert to 7Z format.
- 2
Configure options
Optionally set a compression level or add password protection for the output 7Z file.
- 3
Convert and download
The tool extracts the ZIP contents and repacks them as a 7Z archive for download.
- Converting from ZIP to 7Z can reduce the archive size by 10-30% due to superior LZMA2 compression.
- Add a password during conversion to encrypt the new 7Z archive without needing a separate step.
- Higher compression levels take longer to process but produce smaller output files.
- Direct ZIP to 7Z conversion without manual extract-repack
- Adjustable compression level for size vs. speed tradeoff
- Optional AES-256 password protection on the output archive
- Preserves directory structure and file names from the original ZIP
- Reduce archive sizes for long-term storage or bandwidth-limited transfers
- Add encryption when repacking ZIP files that need password protection
- Standardize archive formats across a project or team that prefers 7Z
- Compress large ZIP backups further before uploading to cloud storage
No. The files inside the archive are identical. Only the archive container format and compression method change.
This tool converts ZIP to 7Z. To go the other direction, extract the 7Z file and repackage the contents as ZIP.