B1FreeArchiver
B1 Free Archiver is a free, multi-platform archive utility for macOS that creates and extracts compressed files in formats including ZIP, RAR, B1, 7Z, ISO and TAR.GZ. It offers 256-bit AES encryption for password protection, fast processing even with large archives, and a straightforward interface requiring minimal learning. The app is used by home users and professionals who need a lightweight, no-cost alternative to commercial archiving tools.
AI Recommendation
1 suggestionB1 Free Archiver has not been updated with a native Apple Silicon build as of May 2026. The latest available version (1.5.86) remains Intel-only and runs under Rosetta 2 today. Since Rosetta 2 will be removed in macOS 28 (September 2028), this Intel-only build will stop launching on that release. Contact Catalina Group Ltd directly to ask whether a native Apple Silicon build is planned before the deadline. In the meantime, if you need a free archiving tool that already runs natively on Apple Silicon, consider The Unarchiver or Keka, both free alternatives available on the Mac App Store that handle most common compression formats. For advanced features like RAR support or encryption, Opus One (also available natively) is a paid but comprehensive option.
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