Queue M4A audio
Choose one or more non-empty .m4a files up to 100 MB each. Each queue row retains its own playable source.
Free online M4A to MP3 converter
Turn M4A audio into downloadable MP3 files.
Add one or more M4A files, create new LAME MP3 audio copies, then listen to and download every completed result.
- Files not stored
- Queue M4A files
- 100 MB each
Processed by our self-hosted conversion engine
Supported files
M4A in. MP3 out.
M4AMP3
Add M4A audio files up to 100 MB each. Fileverses creates a new MP3 result with this route’s documented conversion profile; review the completed download before using it elsewhere.
How it works
One queue. A new MP3 file.
Create MP3 copies
Start the queue to convert the first readable audio stream of every source to a new LAME MP3 at VBR quality setting 2.
Listen and download
Check each completed audio result in the queue, then download its separately named MP3 file.
Limits and quality
A new MP3 file, with source-specific trade-offs.
The output is a newly encoded MP3 made by LAME VBR quality setting 2. It is not the original AAC/M4A audio, does not use a fixed bitrate, and has no promised output size.
Convert M4A nowM4A sources only
This route accepts non-empty .m4a files up to 100 MB each. The selected file needs to be readable by the host FFmpeg installation and contain an audio stream.
New lossy MP3 encode
The output is a newly encoded MP3 made by LAME VBR quality setting 2. It is not the original AAC/M4A audio, does not use a fixed bitrate, and has no promised output size.
First audio stream only
The profile selects the first audio stream and excludes video. It does not guarantee alternate audio-track, video, subtitle, chapter, attachment, or metadata preservation, and has no trimming or bitrate controls.
M4A to MP3 FAQ
Questions, answered.
What M4A files can I add?+−
This converter accepts non-empty .m4a files up to 100 MB each. FFmpeg must be able to read the selected file and find an audio stream for conversion to succeed.
What does the downloaded MP3 contain?+−
A successful result is a newly encoded MP3 audio file made with the LAME encoder at VBR quality setting 2. It contains the first readable audio stream from the source.
Does M4A to MP3 keep the original audio quality?+−
No quality recovery is promised. MP3 is a lossy re-encode, so the result cannot restore detail lost in an AAC/M4A source. Listen to the completed file before using it.
Can I convert several M4A files at once?+−
Yes. Add multiple M4A files to the queue. The browser submits one conversion at a time, and each successful row has its own result player and download button.
Will the MP3 have a fixed bitrate or smaller size?+−
No. This profile uses LAME VBR quality setting 2 rather than a fixed bitrate. The resulting size depends on the source and the encoder output.
Does this convert video, alternate tracks, or metadata?+−
The profile maps only the first audio stream and excludes video. It does not guarantee alternate-track, video, subtitle, chapter, attachment, or metadata preservation.
Are files retained after conversion?+−
Source and output files are written to a temporary server directory only while each conversion runs. Both are removed after the conversion finishes or fails.