Audio conversion
Convert AAC to MP3
Updated Jul 2026
AAC is the audio format used by Apple Music downloads, podcasts, and many streaming apps, while MP3 is the older, universal format that plays on virtually any device or app. To convert AAC to MP3, open the file in a converter and export it as MP3. Doing this on your own computer keeps your music library off someone else's server.
- Extension
- .aac
- Type
- Audio
- Typically
- Apple / streaming audio
- Compression
- Lossy
- Extension
- .mp3
- Type
- Audio
- Typically
- The universal audio format
- Compression
- Lossy
Convert AAC to MP3 on your own computer. Nothing uploads.
How to convert AAC to MP3
- Open Morphjet and drag in the AAC files you want to convert. Add a single track or a whole folder at once.
- Choose MP3 as the output format and pick a bitrate if you want to control the file size.
- Convert. The MP3s are written next to your originals, and nothing leaves your machine.
AAC vs MP3: what actually changes
| AAC | MP3 | |
|---|---|---|
| Opens everywhere | Mostly, native on Apple devices and most modern apps, but some older stereos and software don't recognize it | Yes, universal support |
| File size | Smaller for the same perceived quality | Somewhat larger for the same perceived quality |
| Quality | High efficiency, good quality per byte | Very good on its own, but converting from AAC compresses the audio a second time |
| Typical source | Apple Music downloads, voice memos, streamed or ripped audio | Downloads, older devices, and players expecting broad compatibility |
| Keeps song tags (title, artist, cover art) | Yes | Yes, though cover art is worth double-checking after conversion |
When to convert, and when not to
Convert AAC to MP3 when you need to play a file on an older device, a car stereo, or software that doesn't recognize AAC, or when you're sharing music with someone whose player only handles MP3.
Keep the AAC original if the device or app you're already using plays it fine, since converting to MP3 is a second round of lossy compression that you can't undo afterward.
Why not just use an online converter?
Your music library is still your library, and there's no real reason a stranger's server needs to see it just to change the format. Many online converters require you to upload every file before handing back a result. Converting on your own computer keeps the audio, and your listening habits, entirely on your machine.
Questions
Does converting AAC to MP3 lose quality?
A little. AAC is already a lossy format, so re-encoding it to MP3 compresses the audio a second time and discards more data. At a reasonable bitrate the difference is hard to hear, but it isn't reversible.
Will my song info and cover art carry over?
Usually. Basic tags like title, artist, and album generally map across to MP3, though it's worth checking that cover art came through after converting, since tag support varies slightly between formats.
Why convert to MP3 if AAC already sounds good?
Because MP3 support is close to universal. AAC plays fine on Apple devices and most current apps, but plenty of older car stereos, hardware players, and software still only understand MP3.
Can I convert AAC to MP3 without uploading my files?
Yes. A desktop app like Morphjet processes the files on your own computer, so nothing is sent over the internet, and you can do it with your wifi off.
Is it better to convert straight from the original recording instead of from AAC?
If you still have a lossless or higher-quality source, convert from that instead. Going AAC to MP3 works fine for everyday listening, but you're always starting from an already-compressed file.
Morphjet converts AAC, MP3, and 1,800+ other formats, all on your machine. Launching this July.