An open-source lightweight Equestrian lossless (if possible) audio codec
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Equestria Lossless Audio Codec

An entirely open-source lightweight lossless audio codec/container.

WebKit/Safari doesn't support playing audio from a Blob, a required feature to play ELAC files in a browser; therefore playing ELAC files in Safari is not supported.

Why use ELAC?

  • ELAC is free, libre and open-source software
  • It is lighter than FLAC, WAV, or MP3 with the same quality
  • A single file can contain multiple tracks that will be played after each other (if using a supported player, e.g. elac-play)
  • ELAC keeps all metadata from your original file (except album art)


ELAC-EL (Emulated Lossless) files are created when a non-lossless file is given to elac-encode (e.g. MP3, OGG, ...), they usually have small file size and are playable everywhere.

ELAC-PL (Physical Lossless) files are created when a lossless file is given to elac-encode (e.g. WAV, FLAC, ...).

Both ELAC-EL and ELAC-PL usually have smaller size than the original files.