Compression expert Rich Geldreich who previously worked for the likes of Valve and Unity prior to co-founding his own consulting firm has now made the Crunch and LZHAM technologies available under the public domain.

LZHAM is a lossless data compression codec with a compression ratio comparable to LZMA but with 1.5~8x faster decompression. This LZ-based data compression codec performs excitingly well for decompression purposes. More details on LZHAM via this repository .

Crunch meanwhile as Binomial's advanced DXTc texture compression and transcoding library is also out under the public domain. This texture compression library is geared for use with DXT1/5/N or 3DC compressed color/normal map/cubemap mipmapped texture formats. Crunch has been of interest to many game engines and other parties for its texture compression abilities. Crunch is available via this repository .

Rich shared confirmation of placing LZHAM and Crunch out in the public domain yesterday via his blog .