AAC to MP3 Converter - Free Offline (No Upload)
Convert AAC audio files to MP3 format offline in your browser. Choose bitrate. No upload, 100% private and free.
No Upload
100% Private
Free
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Loading Audio Processing Engine
Uses FFmpeg.wasm. First use downloads ~25MB (cached after).
Initializing...
Drop your AAC files here
or click to select AAC files
Converting: ...
Converted Files
Frequently Asked Questions
Why convert AAC to MP3?
MP3 is more universally supported across devices. Convert AAC to MP3 for maximum compatibility with older players and devices.
Does this AAC to MP3 converter work offline?
Yes. FFmpeg.wasm runs entirely in your browser. Your files never leave your device.
Is there a file size limit?
No server limit. Large AAC files may take time to process depending on your device.