B1 Free Archiver is a free data archiving tool that is extremely easy to use and addressed even to less experienced users. Among the file formats supported by B1 Free Archiver are: b1, zip, jar, xpi, rar, 7z, arj, bz2, cab, deb, gzip, tgz, iso, lzh, lha, lzma, rpm, tar, xar, z, dmg and others.

It is worth mentioning that file format b1 is a completely free (open source) format - it can be used for private and commercial purposes. All necessary files are available on the official website of the manufacturer. B1 Free Archiver is equipped with an improved data compression algorithm, which makes archives much faster than using classic LZMA compression.

The tool makes use of the 256-bit AES data encryption algorithm, which means that without a password no user will be able to extract and read the files in the package.