Convert AAC
Raw or ADTS AAC audio. Every pair below runs in the browser. The file is not uploaded. Video and audio use FFmpeg in WebAssembly, fetched from this origin once, about 30 MB, then cached by the service worker. The clip itself is not part of that download.
This hub is the index, not the workbench. Each conversion is its own URL so a search for “AAC to something” can land on a page that only does that job. The file picker on those pages expects AAC when you are leaving this format, or produces AAC when you are arriving. A generic dropdown still exists under Video convert and Audio convert if you would rather pick the destination after you drop the file.
You can check the same way on every pair: open the network panel, drop a AAC file, convert it. You should see this origin. You shouldn't see a POST of the file. Google Analytics, if it's on, is page views, not your AAC bytes. If a tool needs a server, it isn't on this site.
This site can read it. This site can write it. Engine: ffmpeg.
Convert from AAC
- AAC to MP3The audio format that still plays everywhere.
- AAC to WAVUncompressed PCM. Large, simple, editable.
- AAC to M4AAAC in an MPEG-4 audio file.
- AAC to OGGVorbis in an Ogg container.
- AAC to FLACLossless compressed audio.
- AAC to OPUSOpus audio in an Ogg container. Good for speech and music at low bitrates.
- AAC to AIFFAudio IFF, common in Apple and pro-audio workflows.
- AAC to MKAMatroska audio container (often Opus).
- AAC to AUSun/NeXT AU audio.
- AAC to CAFApple Core Audio Format.
- AAC to TTATrue Audio lossless.
- AAC to WVWavPack lossless.
Convert to AAC
- MP3 to AACThe audio format that still plays everywhere.
- WAV to AACUncompressed PCM. Large, simple, editable.
- M4A to AACAAC in an MPEG-4 audio file.
- OGG to AACVorbis in an Ogg container.
- FLAC to AACLossless compressed audio.
- OPUS to AACOpus audio in an Ogg container. Good for speech and music at low bitrates.
- AIFF to AACAudio IFF, common in Apple and pro-audio workflows.
- MKA to AACMatroska audio container (often Opus).
- AU to AACSun/NeXT AU audio.
- CAF to AACApple Core Audio Format.
- TTA to AACTrue Audio lossless.
- WV to AACWavPack lossless.
Related: Convert · All formats · How it works