Several labels and artists have adopted FLAC as a distribution format for their works, offering them for sale or free download online. And many online trading communities that share legal, band-sanctioned recordings of live shows distribute them in FLAC format. These are just some of them.
A large and growing list of software supports the FLAC format. This list is a sample of software supporting FLAC. The most popular software can be found on the download page in the extras section as well.
Independent third-party format implementations
Flake, which was in turn the basis for the FFmpeg encoder implementation. The FFmpeg decoder implementation is independent as well
FLACCL, formerly FLACUDA, is a FLAC encoder that uses openCL to speed up encoding
Audiocogs FLAC.js, an implementation of a decoder fully written in Javascript, loosely based on the FFmpeg decoder implementation