How to convert AAC to M4A
- Add your .AAC file - drop it in the box above or click to browse.
- Convert it to .M4A in a few seconds.
- Download your new .M4A file.
What to expect
- FFmpeg's
-c copyflag performs a lossless stream copy; tools that re-encode (including VLC's Convert/Save) may introduce a very small quality change. - Raw
.aacADTS files have no standard metadata slot; once wrapped in.m4ayou can embed title, artist, and album art. - If your file is already named
.m4ayou do not need to convert - iTunes and most music apps store AAC audio with the.m4aextension by default.
Frequently asked questions
Does converting AAC to M4A lose quality?
Not when a lossless stream copy is used - the audio bitstream is moved unchanged into the container. Re-encoding tools may cause a tiny quality change, so prefer FFmpeg with
-c copy when quality matters.Why won't iTunes import my .aac file?
iTunes requires AAC audio inside an MP4 container (
.m4a); a bare .aac ADTS file is not recognised. Re-wrap it to .m4a and it will import normally.Is .m4a the same as .mp4?
Both use the MP4 container format. The
.m4a extension signals audio-only content, which prevents some players from expecting a video track.Can I convert .m4a back to .aac?
Yes - run
ffmpeg -i file.m4a -c copy file.aac to extract the raw audio bitstream with no quality loss.Programs that convert AAC: Apple iTunes for Windows · Helium Music Manager · ImTOO DPG Converter · MediaMonkey · Xilisoft iPod Rip · Agree MP3 to Ringtone Converter · Aimersoft DRM Media Converter for Windows · Any Audio Converter
