The Free Lossless Audio Codec (FLAC) is an audio format that compresses sound files without losing any quality. This means that the music or audio retains its original fidelity, making it ideal for audiophiles and music enthusiasts who want high-quality sound. FLAC files are typically smaller than their uncompressed counterparts, such as WAV or AIFF, allowing for easier storage and sharing. FLAC is an open-source format, meaning it is free to use and can be implemented by anyone. It supports various platforms and devices, making it versatile for playback on computers, smartphones, and media players. Many music streaming services and libraries also offer FLAC files for download, catering to users who prioritize audio quality.