M4A to MP3 Converter
Convert M4A audio files to universally compatible MP3 format. Runs entirely in your browser — private and instant.
Drop your M4A file here or click to browse
Max file size: 200 MB
How to Convert M4A to MP3
Select Your M4A File
Click the upload area or drag and drop your M4A audio file. Max size is 200 MB.
Convert to MP3
Click Convert and your M4A file will be re-encoded to high-quality MP3.
Download MP3
Save the MP3 file to your device. Compatible with all players and platforms.
Frequently Asked Questions
What is the difference between M4A and MP3?
M4A uses the AAC codec and is Apple's preferred audio format. MP3 is universally compatible across all devices, players, and platforms. Converting to MP3 ensures your audio works everywhere.
Will I lose audio quality converting M4A to MP3?
There is minimal quality loss. We use high-quality variable bitrate encoding (~190-250 kbps) which preserves excellent audio quality for music and speech.
Does this work with Apple Voice Memos?
Yes! Apple Voice Memos are saved as M4A files. Export your voice memo and use this tool to convert it to MP3 for sharing or uploading to any platform.
Is my audio file uploaded anywhere?
No. All processing happens locally in your browser using WebAssembly. Your file never leaves your device.
Can I convert M4A files from iTunes?
Yes, any M4A file will work regardless of source — iTunes purchases, Apple Music downloads, GarageBand exports, or any other M4A audio file.
What is the maximum file size?
200 MB maximum for reliable browser-based processing. This covers most audio files and voice recordings.
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