Turn AAC audio files into AIFF. It is converted in your browser, so the file never leaves your device.
Drop AAC files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop AAC files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.
Save the AIFF, or download everything as one ZIP if you converted several files.
The AAC to AIFF converter is part of this page and runs inside your browser. Your audio files are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
A raw AAC file has no container, so some players cannot seek in it or read its tags. AIFF is uncompressed and native to Mac audio software. AAC is at home in efficient audio for streaming and video soundtracks; AIFF is the usual choice for audio production on the Mac. AIFF cannot bring back detail that AAC compression already removed; it simply stores the result without further loss, in a larger file.
The defaults suit most files. Under Options you can trim the start and end.
This pair uses the compatibility engine, ffmpeg built for the browser, because AIFF cannot be written by the browser's built-in codecs. It is a one-off download of about 10 MB that the browser keeps, it is slower than the built-in codecs, and it takes files up to 1 GB.
AAC was designed as the successor to MP3 and is the audio codec inside most MP4 videos and streaming services. A bare .aac file is the raw stream without a container, which some players handle poorly.
Opens in Most phones, browsers and media players
AAC converterAIFF is Apple's counterpart to WAV: uncompressed audio with full quality and large files. Logic and GarageBand use it heavily.
Opens in macOS, audio editors, most DAWs; browsers and phones vary
AIFF converter| AACAAC audio | AIFFAIFF audio | |
|---|---|---|
| Stands for | Advanced Audio Coding | Audio Interchange File Format |
| Type | Audio | Audio |
| Compression | Lossy | None (uncompressed PCM) |
| Introduced | 1997, by the Moving Picture Experts Group | 1988, by Apple |
| Opens in | Most phones, browsers and media players | macOS, audio editors, most DAWs; browsers and phones vary |
| Best for | Efficient audio for streaming and video soundtracks | Audio production on the Mac |
| File extension | .aac, .adts | .aiff, .aif, .aifc |
No. The AAC to AIFF conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
No further quality is lost: AIFF stores the decoded audio exactly. It cannot restore what AAC compression already discarded, and the file will be larger.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the AAC file, press Convert and save the AIFF. There is nothing to install.
Yes. AAC to AIFF runs on the compatibility engine, which takes files up to 1 GB, and a long clip takes a while because it is slower than the browser's built-in codecs. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.