| compress/bzip2 | Package bzip2 implements bzip2 decompression. |
| compress/flate | Package flate implements the DEFLATE compressed data format, described in RFC 1951. |
| compress/gzip | Package gzip implements reading and writing of gzip format compressed files, as specified in RFC 1952. |
| compress/lzw | Package lzw implements the Lempel-Ziv-Welch compressed data format, described in T. A. Welch, “A Technique for High-Performance Data Compression”, Computer, 17(6) (June 1984), pp 8-19. |
| compress/zlib | Package zlib implements reading and writing of zlib format compressed data, as specified in RFC 1950. |