Audio codec checker
Upload an audio file and instantly check which codec it uses.
Your file never leaves your device. All processing happens right in your browser, and nothing is uploaded to a server.
Upload an audio file and instantly check which codec it uses.
Your file never leaves your device. All processing happens right in your browser, and nothing is uploaded to a server.
A file extension names the container, not the codec inside it. An .ogg can hold Vorbis or Opus; an .m4a holds AAC or ALAC; an .mkv could hold nearly anything. This tool reads the actual codec so you know what you are dealing with.
Hardware compatibility questions (a car stereo that plays AAC but not Opus), platform specs that demand particular codecs, and debugging why one "MP4" plays while another does not.