Convert M4A to AAC
Upload an M4A file and convert it to AAC — all in your browser.
Upload an M4A file and convert it to AAC — all in your browser.
M4A is AAC audio inside an MP4 container, and this tool simply lifts the stream out into a raw ADTS .aac file. The audio is copied bit-for-bit: no decoding, no quality change, and near-instant completion regardless of length.
This is a technical conversion. HLS packagers, broadcast encoders, and some embedded systems consume ADTS streams directly rather than MP4 files. If you are feeding such a pipeline from M4A sources, this gets you the exact stream without a wasteful decode-encode cycle.
For normal listening or sharing, stay with M4A: the raw stream loses tag and artwork support.
Correct. The AAC packets are copied unchanged into the ADTS framing. Output and input contain the same audio data.
ADTS streams have no tag container, so titles and artwork from the M4A have nowhere to go. The audio itself is unaffected.
No. The repackaging happens locally in your browser in seconds.