Click here to analyse any file

HomeFormats.FLACFull

What is a .FLAC file?

FLAC is a popular lossless audio format that compresses without losing any quality.

Did you know
  • FLAC was released in 2001 and is the most popular format for lossless music archiving.
  • FLAC compresses audio without discarding a single sample, so a decoded file is mathematically identical to the original recording.
  • Development was begun by Josh Coalson and the format now lives under the non-profit Xiph.Org Foundation, the same group behind Vorbis and Opus.
  • On the web a .FLAC file is served with the MIME type audio/flac.
  • Analyser spots a .FLAC file by its signature bytes 66 4C 61 43 - ASCII for "fLaC".
What Analyser shows you
Inspect the waveform, spectrogram, codec, bitrate, channels, and tags of MP3, WAV, FLAC, M4A, AAC, OGG, and Opus audio.
Open a .FLAC file
Drag a .FLAC file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
Related formats
.MP3 · .WAV · .M4A · .M4B · .AAC · .OGG · .OPUS · .AIFF · .WMA · .AMR · .AC3 · .DTS · .MKA. See all supported file types.