tool index
Local audio utility
M4A to MP3. Keep it local.
Convert a compatible M4A recording to an audio download. Your file never enters a server queue.
01 / input02 / shape03 / take away
local input250 MB max
private by defaultMP3 / WAV / M4A / MP4
Signal path
Set the destination
Input / waiting for a file—
This route is mapped from the survey, but the browser export currently supports WAV only. MP3 and M4A encoders are not enabled yet.
Choose a file to unlock the conversion path.
Browser-native processing keeps the original on your device. Output quality depends on the decoder available in your browser.
Route intent from the supplied CSV: m4a to mp3 / convert m4a. The browser capability is explicit, so a limited decoder never looks like a completed upload.