TeraConvertTeraConvert

Convert AAC to MP3 on your Mac

AAC lands on your Mac straight from your iPhone, Music, or camera. Convert AAC to MP3 on your device, nothing uploaded. The desktop app batches a whole folder at once.

Conversion Successful
100% local. Your file is processed in this tab and never uploaded.

How to Convert AAC to MP3

  1. 1

    Drop your AAC file

    Drag it into the converter above, or click to browse. Nothing is uploaded.

  2. 2

    Adjust settings (optional)

    Trim, fade, or adjust volume from the sliders icon.

  3. 3

    Convert and download

    MP3 is preselected. The file converts in this tab and downloads when done.

Why Convert AAC to MP3?

AAC is the better codec on paper. In hardware, MP3 wins: decoders for it are baked into virtually every audio device made in the past twenty-five years, which makes it the safe choice for any file that has to play anywhere.

Convert and stop worrying.

AAC
MP3
Compression
Lossy
Compression
Lossy
Typical bitrate
96-256 kbps
Typical bitrate
128-320 kbps
Sample rate
Up to 96 kHz
Sample rate
44.1 kHz / 48 kHz
Metadata
Limited
Metadata
ID3 tags
Device support
Apple, Android, modern players
Device support
Universal
Typical use
Streaming, Apple devices
Typical use
Music, podcasts

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Frequently Asked Questions

Does AAC to MP3 conversion reduce quality?
A little. Both formats are lossy, so converting compounds the loss; stay at 256 or 320 kbps and you will not hear it.
What is the difference between AAC and M4A?
AAC is the codec; M4A is the box it usually ships in. This converter takes both.
Will my ID3 tags survive the conversion?
Standard tags (artist, title, album, track number) generally carry over. Album art can be inconsistent; re-add it in your player if it drops.
Why does MP3 have better device compatibility than AAC?
MP3 has been the dominant portable audio format since the late 1990s. Hardware MP3 decoders are built into virtually every audio device ever made, while AAC support is more recent and not universal.
Is my file private?
Yes. The conversion runs in your browser tab and nothing is uploaded, so your files never leave your device. The only limit is size: 100 MB for this format. Bigger files route to the desktop app.

Converting your entire iTunes backup?

TeraConvert Desktop batch-converts AAC files from iTunes or Apple Music libraries using FFmpeg with no file count or size restrictions.

Get TeraConvert for MacThis format runs in the Mac app. One-time Pro purchase, 14-day money-back guarantee.