Convert M4A audio files to MP3 locally in the browser with simple quality presets and exact bitrate.
Files are not sent to a server. Processing runs in your browser, and the queue handles one file at a time so the device stays responsive.
Drop M4A files here
or tap to choose several files
No files selected.
M4A stays on your device. The first conversion can take longer: speed depends on the browser, device and connection.
MP3 quality
Exact settings
M4A is first read by the browser; full local mode starts only if the browser cannot read the audio track.
In queue0
Done0
Size saving-
Add M4A files.
Preview
How to use it
Add an M4A file and process it. The browser reads the audio track locally and falls back to full local conversion if needed.
Recommended settings
128 kbps works for podcasts and voice. Choose 192 kbps or 256 kbps for music you plan to reuse.
Privacy
Your files are not uploaded to a server. The editor runs in your browser with local libraries from this site.
Limits
Large images can take longer on phones. If the browser slows down, process fewer files at once or choose a smaller output format.