What is this project about?

This project contains a set java implementations of commonly used compression algorithms.

Libraries were carefully written to be compatible with both J2SE and J2ME platforms, keeping code size as small as possible.

Users: please let us know which projects this library is being used on. Also, make sure file bugs.

GZIP & Deflate

Smallest java full implementation of GZIP algorithm.

Status

Decompression and compression are available at this time. Library size is 6.5k.

Compression algorithm uses fixed fixed Huffman block. dyn Dynamic Huffman block is on the way.

Compatibility

• 100% compatible with both J2SE and J2ME.
• 100% compatible with Deflate and GZIP RFCs.
• Produces and checks CRCs.

LZC (aka unix compress)

Smallest java implementation of LZC algorithm.

Comes in two flavors

• LZWOutputStream and LZWInputStream: 4.3k bytes
• Static class LZWStream (aka alternative API): 3.5k bytes.

Compatibility

• 100% compatible with both J2SE and J2ME.
• 100% compatible with unix compress (.Z file) format.

Helping

Checkout the code and send me patches.