B1FreeArchiver overview

B1FreeArchiver, a friendly and simple free file archive Manager for Mac. Fast and simple compression/extract. Opens most popular formats: zip, rar, 7z and more. Work with archives just like with regular folders. Remarkable speed and compression ratio with new B1 archive format.

B1 Free Archiver

Simple & fast

B1 Archiver is extremely simple to use, you don't need comprehensive manuals or guides. Just install it and enjoy. Also it works very fast even with large archives with many files.

Safe & secure

The highest safe standards were applied. B1 Archiver never gathers any kind of personal information and does not install any malicious software.

B1 Archive Format

Perfect format for everyone

B1 archive is an open archive format, where best proven solutions were improved even more with new original ideas. It's free and available for both personal and commercial use.

Open source

All code is open. You can download sources of all b1 tools and libraries here. Feel free to use them in any of your products or services.

Developers community

Tools and libraries are available to work with b1 archives. Please refer to project documentation and discussion group. Feel free to ask support should you have any questions.

Best speed to compression ratio

Though classic LZMA compression has been improving for over a decade, there are still some options to explore. For .b1 an improved compression algorithm was designed with much better speed to compression ratio.

Encryption with password

With encryption you can protect data with 256 bit AES encryption algorithm. No one will be able to read or extract original files without password.

What’s new in version 1.5.86

Updated on Apr 12 2014

Version 1.5.86:

Note: 1.or is the version number reported in Finder. The developer refers to this version of the app as 1.5.86.

Better file preview
Support for .001-.NNN archives
Numerous bug fixes and improvements

Information

License

Free

Size

27 MB

Developer’s website

http://b1.org/mac/

Downloads

3672

App requirements

Intel 64
Mac OS X 10.6.8 or later

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User Ratings

GianMarco.Tavazzani

Aug 20 2014

1.5.86

5.0

Version: 1.5.86

Impressive speed! I would like to know why Archive Utility can't open .rar files but, so far, I had to search a smart alternative: FOUND! Compression, DEPRESSION (the world 'decompression' could be funny if it was not used seriously, a tragedy of the recent fall down of the mastering of the mother language of some folks!!!) in a snap! Maybe the user interface could be rethought a bit but, seriously, WHO CARES when all works so fine and quickly and it's almost never needed?