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.aac.m4a
Convert AAC (ADTS) to M4A (AAC)
Convert AAC (ADTS) (.aac) to M4A (AAC) (.m4a) for free, right in your browser. No upload, no sign-up: your files never leave your device.
About AAC (ADTS) to M4A (AAC) conversion
This tool converts AAC (ADTS) files to M4A (AAC) entirely on your device. The conversion runs locally in your browser using WebAssembly, so your audio files are never uploaded to a server.
AAC is a lossy audio codec that offers better quality than MP3 at the same bitrate.
M4A is AAC audio in an MP4 container, the standard format for iTunes and Apple devices.
Learn more about AAC (ADTS) and M4A (AAC).