B1 Free Archiver is a 100% free compression tool for Mac as well as Windows, Android and Linux. It works with most popular formats - rar, zip, 7z as well as its own b1 format. B1 Free Archiver is very handy - most actions are performed in 2-3 clicks. Its latest improvements include password encryption, the possibility to choose and set default open action, full drag-and-drop support, archive in archive creation and navigation, keyboard navigation, etc.
What's new in this version:
Complete drag-and-drop support, default open action which presents high level of customization.