MP3 to M4A Converter
Haikit converts MP3 to M4A in your browser, for free. Add your file, pick the quality, and download the M4A. M4A uses the AAC codec, which often sounds better than MP3 at the same file size and works on all Apple devices.
Drop audio or video files here
MP3, WAV, M4A, FLAC, OGG, MP4, MOV and more. Add a video to extract its sound. Files up to 50 MB.
You can also paste with Ctrl+V.
Your files are converted on your device and are never uploaded.
How to use MP3 to M4A
- 1
Add your MP3 file. Files up to 50 MB are free.
- 2
M4A is already selected. Choose a bitrate if the format offers it, and trim the start or end if you like.
- 3
Click Convert and download the result.
What is free and what is paid
Free, no sign-up
- Convert one file at a time to MP3, WAV, OGG, M4A, FLAC or Opus
- Extract the audio track from a video
- Trim the start and end
- Files up to 50 MB
Questions
Is M4A better than MP3?
At the same bitrate AAC audio in an M4A file usually sounds slightly better than MP3. M4A plays on iPhone, Mac, Android and most modern players.
Is MP3 to M4A free?
Yes. You can convert one file at a time, up to 50 MB, for free with no sign-up. Paid plans convert up to 20 files at once and handle files up to 300 MB.
Are my files uploaded?
No. The conversion runs inside your browser, so your file never leaves your device. The converter itself downloads once (about 30 MB) and your browser keeps it for next time.
Do I need to install anything?
No. Haikit works in the browser on Windows, Mac, Linux, iPhone and Android. There is nothing to download or install.
Updated October 2026