Free · No signup · Files deleted after 1h
MP3 to AAC
Converter
Turn MP3 into AAC — efficient, Apple-friendly audio — free, no signup, no watermark.
Convert MP3 to AAC free →No account needed · Up to 25 MB free · Files permanently deleted after 1 hour
Efficient codec
AAC generally sounds a little better than MP3 at the same file size, which is why it's used by Apple Music and YouTube.
Apple-friendly
AAC is the native audio codec for iPhone, iTunes and the Apple ecosystem.
Private & fast
Uploaded over HTTPS, converted on EU servers, never shared, deleted within 1 hour.
How it works
1
Upload your MP3
Drag and drop your .mp3 file or click to browse.
2
Choose AAC output
AAC is the default. You can also pick M4A, WAV, OGG or FLAC.
3
Download your AAC
Ready in seconds — click Download.
Common questions
Will the quality improve?
Converting can't restore detail the MP3 already discarded, but AAC is an efficient codec, so you keep your quality at a similar or smaller size.
AAC vs M4A — what's the difference?
AAC is the audio codec; M4A is a common container that holds AAC audio. For Apple devices, M4A is often the friendlier choice — we offer both.
Why convert MP3 to AAC?
AAC is the preferred format across Apple's ecosystem and many streaming services, and it's slightly more efficient than MP3 at the same size.
Is there a file size limit?
Free users get up to 25 MB without an account; Pro raises it to 500 MB per file with 3,000 credits a month.