7-Zip (64-bit) - The Premier Free File Archiver & Compression Utility

7-Zip is a free and open-source file archiver with a high compression ratio developed by Igor Pavlov. Featuring proprietary LZMA and LZMA2 compression algorithms in its native 7z format, 7-Zip delivers compression ratios typically 30-70% better than standard ZIP archives and frequently outcompetes RAR compression.

Key Features of 7-Zip:

• Ultra-High Compression Ratio: High compression in 7z format with LZMA and LZMA2 algorithms.
• Extensive Format Support: Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM. Unpacking only: RAR, ISO, CAB, ARJ, DMG, VHD, MSI, DEB, RPM, Z, LZH, and many others.
• Military-Grade AES-256 Encryption: Strong AES-256 encryption in 7z and ZIP formats, with support for file name encryption in 7z archives.
• Seamless Windows Shell Integration: Context menu shortcuts allowing instant archive creation, extraction, and testing from Windows Explorer.
• Multi-Threading Optimization: Scales efficiently across high-core modern CPUs for rapid archival operations.
• Self-Extracting Capability (SFX) & CLI: Create executable self-extracting archives and automate tasks via command-line interface.

Why Choose 7-Zip:

• 100% Free & Open Source under the GNU LGPL license; no nag screens, no license expiration warnings.
• Tiny installation size (~1.5 MB) with negligible memory footprint.