AAC to Opus
Change AAC to Opus and keep the quality you need. Free for up to 10 files a day, no sign-up.
AAC
Your files
Drop your .aac files here
or
You can add several files and convert them together.
How to convert AAC to Opus
- Drop your AAC file into the box above, or add it from a link.
- Opus is already selected. Use the settings button next to it to change size, quality or other options.
- Select Convert, then download your Opus file.
To do this from your own code, call the FileForge API with "output_format": "opus".
About the formats
.aac
AAC is the audio codec behind iTunes, YouTube and most MP4 videos. It sounds better than MP3 at the same bitrate, but bare .aac files aren't accepted everywhere.
.opus
Opus is a modern audio codec used by WhatsApp voice notes, Discord and WebRTC calls. It sounds great at low bitrates but many players and editors don't recognise .opus files.