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AAC to MP3

Convert AAC audio files to MP3. Free, with no upload.

Files stay on your device

Drop files to convert

See their format, then choose an output.

MP3, M4A, WAV, FLAC, and other audio, or a video with sound. You can also drag in a whole folder.

How to convert AAC to MP3

Open an .aac file, such as a radio recording or a sound saved from an app, and save it as an MP3 for players that don't take AAC. The AAC to MP3 converter runs in your browser, so the file stays on your device.

  1. Step 1

    Choose your AAC files
    Pick one or many, or drop them into the converter above.
  2. Step 2

    Keep MP3
    MP3 is selected; choose another audio format if you need one.
  3. Step 3

    Download the MP3
    Save each file when it's converted.

What to expect

Supported inputs
AAC files (.aac), M4A files, and any other audio or video file.
What happens
The AAC sound is re-encoded as MP3. MP3 is selected first; you can choose another audio format.
Limits
Very long recordings depend on your device's memory.

Private by design

Your video stays on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

  • No upload
  • No signup
  • No watermark

Questions

At the same size, AAC usually sounds a little better. MP3 plays on more old players and car stereos, which is why people convert.

Yes. An M4A usually holds AAC sound. Drop it in the same way.