Lzip is a lossless data compressor based on the LZMA algorithm, with very safe integrity checking and a user interface similar to the one of gzip or bzip2. Lzip decompresses almost as fast as gzip and compresses better than bzip2, which makes it well suited for software distribution and data archiving.

Lzip is intended to replace the lzma compressor, whose format lacks identification bytes in the header and integrity checking.

Lzip is alredy used to distribute some GNU packages, like ddrescue or ed.