🔒 Converts in your browser · files stay private

Convert MP3 to AAC

Drop your MP3 file into the box above (or click Choose Files), then click Convert and download your new AAC file. No account or software needed.

Convert MP3 to AAC online, free — no installation, no sign-up.

or drop files here to convert MP3 → AAC

Or import from:

Max file size 1 GB. Browser-side conversions have no upload limit.

How to convert MP3 to AAC

Drop your MP3 file above or click Choose Files.

Your file is converted instantly in your browser — it never gets uploaded.

Grab your new AAC file — done.

MP3 is the universal lossy audio format, balancing small size with good quality.

AAC is a lossy audio format that generally outperforms MP3 at the same bitrate.

Drop your MP3 file into the box above (or click Choose Files), then click Convert and download your new AAC file. No account or software needed.

Yes — this converter is completely free with no watermarks and no sign-up.

Absolutely. This conversion runs entirely inside your browser, so your MP3 file never leaves your device.

You control the output. Use the advanced options (the gear icon) to set quality, and we preserve as much fidelity as the AAC format allows.