Anyfile is in beta, so a few things may not work perfectly yet. Tell us what you find
Free converter
Anyfile converts an Opus audio to an AAC audio for free, right in your browser: the file is never uploaded.
Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.
| Sound quality | Encoded at 192 kbps, which most people can’t tell from the original |
|---|---|
| Tags and cover art | Title, artist, album and cover carried over where AAC holds them; lyrics and some rarer tags aren’t yet |
| File size | Usually larger: AAC compresses less tightly than OPUS |
When to use AAC: Streaming audio, digital radio and soundtracks taken from video files.
.opus
A royalty-free codec standardised by the IETF in 2012 (RFC 6716), usually stored in an Ogg container. It handles both speech and music well at very low bit rates.
Voice calls, voice notes and streaming, where low delay and small size matter.
Opens in Chrome, Firefox, Edge, VLC, Audacity
About OPUS files.aac
A lossy codec standardised by MPEG in 1997 as the successor to MP3, usually sounding better at the same bit rate. A bare .aac file holds the raw stream without an MP4 wrapper.
Streaming audio, digital radio and soundtracks taken from video files.
Opens in Music, QuickTime, VLC, Windows Media Player, most phones
About AAC filesGoing the other way? Convert AAC to OPUS
Everything that converts to AAC
Need to change it first? Open the audio editor
Drop your OPUS file on this page, or choose it. Anyfile converts it on your device in a moment and the AAC downloads straight away. To change it first, open it in the audio editor.
No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.
AAC is a compressed format, and Anyfile saves at high quality, so the difference is very hard to notice.
Yes. Drop them together and you get one ZIP with every AAC inside.