fake-flac

Catches fake hi-fi: music sold as lossless that was secretly compressed. It only says so when the proof is overwhelming.

Detect fake FLAC files — find MP3/AAC/Opus transcodes disguised as lossless audio. Fast Rust CLI + web UI.

FakeFlacFinder is a read-only command-line tool that checks FLAC integrity and looks for signs that the audio was previously compressed using a lossy format such as MP3.

Find audio files whose real frequency content doesn't match their format: low-bitrate rips re-encoded at 320 kbps, lossy files passed off as FLAC.

Fake FLAC detector & spectrogram viewer: finds MP3/AAC/Opus transcodes, upsampled hi-res and padded 24-bit in your lossless music library. Names the source codec, scans albums, EBU R128/DR/clipping. Self-hosted web app (Docker), HTTP API.