In our tests, 7z archives were up to 40 percent smaller then their ZIP equivalents, although compression did take longer, and the highest compression settings can hog system resources. The program's ability to shrink files was stunning.
Strong AES-256 encryption in 7z and ZIP formats Unpacking only: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.įor ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM High compression ratio in 7z format with LZMA and LZMA2 compression You don't need to register or pay for 7-Zip. You can use 7-Zip on any computer, including a computer in a commercial organization. Check license information here: 7-Zip license.
The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions.
Most of the source code is under the GNU LGPL license. 7-Zip is a file archiver with a high compression ratio.ħ-Zip is open source software.
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