7-Zip Comparison

7-Zip vs WinRAR vs WinZip

Compression Ratio Results

Program 7z Format ZIP Format RAR Format
7-Zip 100% (Best) 100% (Best) Not supported
WinRAR 83% 99% 100% (Best)
WinZip 82% 99% Not supported

Results based on compression of "Silesia corpus" files. Lower percentage means better compression ratio. 7-Zip provides superior compression in 7z and ZIP formats.

Feature Comparison

Feature 7-Zip WinRAR WinZip
Price Free Paid ($29.95) Paid ($29.95)
Open Source Yes No No
7z Format Yes Read only No
ZIP Support Yes Yes Yes
RAR Support Read only Yes No
AES-256 Encryption Yes Yes Yes
Self-Extracting Archives Yes Yes Yes
Multi-volume Archives Yes Yes Yes
Command Line Yes Yes Yes
Windows Integration Yes Yes Yes

Why Choose 7-Zip?

  • Completely Free: No trial period, no restrictions, free forever
  • Best Compression: Superior compression ratios in 7z and ZIP formats
  • Open Source: Transparent code, community-driven development
  • Secure: Strong AES-256 encryption for your archives
  • Fast: Multi-threading support for quick compression
  • Versatile: Supports 30+ archive formats
  • Lightweight: Small file size, low resource usage
  • No Ads: Clean interface without advertisements

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