AAC to OPUS converter
Turn AAC into OPUS
Send us the AAC you already have and take away a OPUS. Handled on our servers, deleted the moment the job ends.
or drag and drop files here
AAC files • Max 50MB per file • Up to 10 files
Both formats, briefly
AACIN
AAC was designed to succeed MP3 and generally sounds cleaner at the same bitrate, especially at lower settings. It is the audio riding inside most MP4 video, the default in Apple's music apps, and standard in digital radio and television. Choose AAC when you want a smaller file than MP3 without hearing the difference.
OPUSOUT
Opus is a modern codec aimed at real time sound. It encodes with very little delay, changes bitrate on the fly, and stays intelligible when bandwidth drops away. Voice and video calling tools use it for exactly that, and WebRTC treats it as the default. Music encodes well too, but standalone hardware rarely supports it, so convert before loading files onto an older player.
Three steps, start to finish
Add your AAC
Drag it onto the page, or pull it in from your computer, Google Drive or Dropbox.
OPUS is preselected
This page is already set to write OPUS. Switch the target if you change your mind.
Take the OPUS
Grab the result the moment the job clears. Your upload is wiped straight afterwards.