Convert M4A to MP3
Convert M4A to MP3 online for free. Simply drop your M4A files below to convert them to MP3 in seconds.
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Add files
Drop files anywhere on the page or paste them with Ctrl+V / ⌘+V
How to convert M4A to MP3?
Add M4A files
Drag and drop files onto the page or click the upload area. You can add several files at once.
Choose MP3 and settings
Pick the target format and, if needed, adjust quality, size and other options.
Download the result
Conversion runs right in your browser. Download files one by one or all at once as a ZIP archive.
Converting M4A to MP3: what to know
M4A is audio in an MP4 container, usually in the AAC codec. It's what the iPhone Voice Memos app records and what iTunes tracks often come in. It is converted to MP3 so the file plays on any player, in a car, on an older phone or in a program that doesn't understand M4A.
Both formats are lossy, so a little quality is lost in the conversion. For music choose a bitrate of 192–320 kbps; for voice and recordings 96–128 kbps is enough.
Before saving, you can trim the recording, turn stereo into mono or change the sample rate.
M4A or MP3: which to choose?
M4A (MPEG-4 Audio)
M4A is an MPEG-4 audio file, usually AAC - the format of Apple Music, iTunes and iPhone voice memos.
Best for music and voice recordings in the Apple ecosystem.
MP3 (MPEG-1 Audio Layer III)
MP3 is the most universal audio format: compact files that play anywhere.
Best for music, podcasts and audiobooks on any device.
What happens when converting M4A to MP3
MP3 compresses with loss: choose the bitrate - at 192–320 kbps it sounds close to the original.
Trim the fragment, convert stereo to mono or change the sample rate.
M4A files up to 512 MB are supported; the actual limit also depends on the free memory of your device.
M4A and MP3 compared
Convert M4A to other formats
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Frequently asked questions
How do I convert M4A to MP3?
Add M4A files above - MP3 is already selected as the target format. Adjust the settings if needed, start the conversion and download the MP3 files.
Can I change the MP3 quality?
Yes. Set the quality from 1 to 100 in the file settings: the lower the value, the smaller the file.
How do I convert an iPhone voice memo to MP3?
Add the M4A file from Voice Memos; MP3 is already selected as the target. Trim the start and end if you like, and download the MP3.