How do I convert AAC to MP3?

Drop the file on this page and press the button. It runs in your browser, so there is no upload, no account and no daily limit.

Why will my device not open a AAC file?

Anything old enough to predate it, and a lot of upload forms that were written to accept exactly one extension.

Does converting to MP3 lose quality?

MP3 is lossy, so a little goes at any bitrate. 192 kbps is transparent for speech and close to it for music; 320 is the ceiling and is only worth it when the source was better than the target.

Is the file uploaded?

No. The decode and the encode both happen in the page, and no request carries the audio anywhere. Watch the network panel while it runs.

ON YOUR DEVICE · FREE

AAC to MP3

AAC is what almost everything records to now: phones, cameras, streaming, broadcast

…

What the conversion sites charge

Convertio	~~$6.99 / month~~	converts on their servers, with a daily cap
Zamzar	~~$12 / month~~	converts on their servers, with a size cap
CloudConvert	~~$10 / month~~	converts on their servers, priced per minute
PixPunk	Free	no upload, no account, no daily cap

AAC is a better codec than MP3 at the same bitrate. Converting to MP3 is a step down in quality made for a step up in compatibility, and that is the honest description of it. Their caps exist because every conversion runs on a machine they rent. Yours runs on the machine in front of you.

1
Where your AAC came from
AAC is what almost everything records to now: phones, cameras, streaming, broadcast. A bare .aac file is the raw stream without a container.
2
Why you are converting it
Anything old enough to predate it, and a lot of upload forms that were written to accept exactly one extension. MP3 is the format nothing refuses. That is its entire remaining argument and it is a good one.
3
What it costs
MP3 is lossy, so a little goes at any bitrate. 192 kbps is transparent for speech and close to it for music; 320 is the ceiling and is only worth it when the source was better than the target.

FAQ

How do I convert AAC to MP3?: Drop the file on this page and press the button. It runs in your browser, so there is no upload, no account and no daily limit.
Why will my device not open a AAC file?: Anything old enough to predate it, and a lot of upload forms that were written to accept exactly one extension.
Is there anything odd about AAC?: AAC is a better codec than MP3 at the same bitrate. Converting to MP3 is a step down in quality made for a step up in compatibility, and that is the honest description of it.
Does converting to MP3 lose quality?: MP3 is lossy, so a little goes at any bitrate. 192 kbps is transparent for speech and close to it for music; 320 is the ceiling and is only worth it when the source was better than the target.
Is the file uploaded?: No. The decode and the encode both happen in the page, and no request carries the audio anywhere. Watch the network panel while it runs.

AAC to MP3

What the conversion sites charge

Where your AAC came from

Why you are converting it

What it costs

FAQ

The other tools