Unfoo is a tiny sh(1) wrapper to simplify decompression of files.
Supported archive types: tar, gzip, bzip2, ace, rar, zip, 7z.
Pixz (pronounced 'pixie') is a parallel, indexing version of XZ.
PPMD is a fast archiver with a good compression ratio. It is written for
embedding in user programs mainly it is not intended for immediate use.
Speed and performance improvements of abstract PPM model 1-6 are the main
goal.
Mark Adler, maintainer of popular zlib library has released a multicore
capable Parallel Implementation of GZip, nicknamed PIGZ. Version 1.5
implements nearly all of gzip's functionality, including decompression
of .gz and .Z (Unix compress) files.