M4A to MP3 converter
한국어Pick a m4a file and convert it to mp3. The file does not go to a server and the work finishes on this device.
What do you want to do
Pull the sound out of a video or recording as mp3, m4a or wav. No re-encoding of video, so it is fast.
Why convert
Phone recordings and voice memos are often saved as m4a, and some older devices and programs cannot open it. mp3 plays almost anywhere.
What happens to the sound
Both m4a and mp3 drop part of the sound to save space. Saving as mp3 again can lower the quality a little, and the file does not always get smaller.
Questions
Is my file uploaded?
No. The m4a file you pick does not leave your browser, and the conversion finishes on this device.
Does converting m4a to mp3 make the sound worse?
Both are already reduced formats, so saving again can cost a little more. Speech usually shows it less than music does.
Is it slow, or are there files that fail?
The conversion runs on a single thread on your device, so long files take time. The engine is downloaded once at the start. The size limit depends on your browser and device memory.