Turn AAC audio into MP3s. 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 MP3, or download everything as one ZIP if you converted several files.
The AAC to MP3 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 bare .aac file is a raw stream that some players cannot seek through or tag. MP3 is accepted by every player and editor. Both are lossy, so the sound is compressed a second time.
The defaults suit most files. Under Options you can choose the bitrate and trim the start and end.
The conversion uses your browser's own video and audio codecs (WebCodecs), with hardware acceleration where the device has it; the file is read from disk as it goes and can be up to 2 GB. Where the browser lacks a codec, the page falls back to the compatibility engine. MP3 is written at 192 kbps unless you choose another bitrate.
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 converterMP3 is the audio format everything plays. It shrinks audio to roughly a tenth of its uncompressed size by discarding sound most listeners cannot hear. Newer codecs are more efficient, but nothing matches its compatibility.
Opens in Every phone, computer, car stereo and speaker
MP3 converter| AACAAC audio | MP3MP3 audio | |
|---|---|---|
| Stands for | Advanced Audio Coding | MPEG-1 Audio Layer III |
| Type | Audio | Audio |
| Compression | Lossy | Lossy |
| Introduced | 1997, by the Moving Picture Experts Group | 1993, by the Fraunhofer Society and the Moving Picture Experts Group |
| Opens in | Most phones, browsers and media players | Every phone, computer, car stereo and speaker |
| Best for | Efficient audio for streaming and video soundtracks | Music and podcasts that must play anywhere |
| File extension | .aac, .adts | .mp3 |
No. The AAC to MP3 conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
MP3 is a lossy format, so a small amount of detail is traded for a smaller file. At the default setting the difference is hard to notice. You can choose the bitrate under Options.
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 MP3. There is nothing to install.
Yes. Files up to 2 GB are accepted. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.