B1 Archiver is 100% free file archive manager. You can use it on any computer and you don't have to register or pay anything. Feel free to share B1 Archiver with your friends or co-workers. Download The Unarchiver for macOS 10.7 or later and enjoy it on your Mac. The Unarchiver is a small and easy to use program that can unarchive many different kinds of archive files. It will open common formats such as Zip, RAR (including v5), 7-zip, Tar, Gzip and Bzip2. Archiver is a powerful, feature-rich archiving utility for the Mac to open archives, compress files, as well as split and combine files. Smooth, easy-to-use user interface that blends beautifully into your Mac. Smart drag & drop to save you time. Conveniently preview archives. Li.
Freeware
Windows/macOS/Android
656 KB
12,701
100% Free
B1 Archiver is 100% free file archive manager. You can use it on any computer and you don't have to register or pay anything. Feel free to share B1 Archiver with your friends or co-workers.
Available for Windows, Linux and Mac OS
B1 Archiver works on all platforms - Windows, Linux and Mac. You no longer need different archive software on your pc and laptop. B1 is the best unified solution for every device.
Version for Android
Looking for a nice, powerful, yet free archive manager for Android? B1 works on Android as perfectly as on other platforms!
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
We apply the highest safe standards and care about your confidentiality. B1 Archiver never gathers any kind of personal information and does not install any malicious software.
Best format for everyone
B1 archive is an open archive format which combines best proven solutions and our new original ideas. It’s free and available for both personal and commercial use.
Open source
We're happy to share b1 with everyone, so 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
We developed tools and libraries 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 we designed an improved compression algorithm 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.
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Download B1 Free Archiver for Windows
Available for: Microsoft Windows XP (32 bit),
Windows Vista (32 bit), Windows 7 (32 bit and 64 bit),
Windows 8 (32 bit and 64 bit)
Windows Vista (32 bit), Windows 7 (32 bit and 64 bit),
Windows 8 (32 bit and 64 bit)
![Mac os archive Mac os archive](/uploads/1/3/4/0/134064007/430116172.png)
Download B1 Free Archiver for MAC OS
Best Archiver For Mac Free
Available for: Mac OS X 10.9 Mavericks,
Mac OS X 10.8 Mountain Lion, Mac OS X 10.7 Lion,
Mac OS X 10.6 Snow Leopard
Mac OS X 10.8 Mountain Lion, Mac OS X 10.7 Lion,
Mac OS X 10.6 Snow Leopard
B1 Archiver
also available on
also available on
Download B1 Free Archiver for Ubuntu
Available for: Ubuntu 12.04 LTS, Ubuntu 12.10,
Ubuntu 13.04, Ubuntu 13.10
Ubuntu 13.04, Ubuntu 13.10
Download B1 Free Archiver for Fedora
Free Archiver For Macos
Available for: Fedora 18 and up
Coming soon...