7z vs ZIP Comparison

7z vs ZIP format comparison: compression, compatibility, features.

Compression: 7z Wins

7z with LZMA2 achieves 30-50% smaller files than ZIP with deflate. A 100 MB folder may compress to 60 MB in ZIP but 40 MB in 7z.

ZIP opens natively on Windows, Mac, Linux, and mobile. 7z requires 7-Zip or compatible software to be installed.

Both support AES-256. 7z also supports filename encryption; ZIP does not. 7z encryption is superior for privacy.

Use 7z for storage and security. Use ZIP for sharing and compatibility. Many users keep both formats for different purposes.

Guide to opening 7z archive files on Windows, Mac, and Linux.

Create 7z archives with optimal compression settings using 7-Zip.

Free, open-source, official download.