B1 Free Archiver is a versatile file compressor and decompressor available across all platforms, completely free of charge. Its user-friendly interface resembles the popular WinRAR, featuring options to create or decompress archives at the top and a file browsing window at the bottom. While it primarily uses the B1 compression format, it also supports unzipping other popular formats like ZIP, RAR, and 7Z. B1 Free Archiver offers the convenience of breaking down archives into separate parts, with handy presets such as the maximum size allowed by Gmail. This makes it an excellent, cost-free solution for quickly and easily managing your compressed files.



Irina Mikheeva
Great software for archiving! B1 Archiver has worked wonders for my overflowing files. The compression speed is impressive, and it’s pretty reliable too. The only downside was a small learning curve. Happy overall with this app!
aleksandrtairov381
This app is pure bliss! B1 Archiver saved me from an overflowing desktop. It’s so easy to zip folders that I did it with my eyes closed! The time I’ve saved is priceless. Seriously, I can’t imagine life without it now. Best app ever!
Kirill Chebotaryov
Decent application but not without flaws. B1 Archiver works wonders most of the time, but I encountered a few errors when extracting files. Quick compressing, tho! I'd give it another shot, just hope it gets better!