WinRAR at a glance WinRAR is a powerful compression tool with many integrated additional functions to help you organize your compressed archives. WinRAR puts you ahead of the crowd when it comes to compression. By consistently creating smaller archives, WinRAR is often faster than the competition. This will save you disk space, transmission costs AND valuable working time as well. WinRAR supports all popular compression formats (RAR, ZIP, CAB, ARJ, LZH, TAR, GZip, UUE, ISO, BZIP2, Z and 7-Zip). WinRAR is ideal for multimedia files. WinRAR automatically recognizes and selects the best compression method. The special compression algorithm compresses multimedia files, executables and object libraries particularly well. WinRAR allows you to split archives into separate volumes easily, making it possible to save them on several disks for example. WinRAR is also ideal, if you are sending data through the web. Its 256 bit password encryption and its authenticated signature technology will give you the peace of mind you have been looking for.