M4A to MP3 Converter
Convert M4A audio files to MP3 format instantly. Free, fast, and private.
M4A is Apple's default audio format used by iTunes, Voice Memos, and iPhone recordings. Convert your M4A files to MP3 for universal compatibility across all devices and music players. Everything runs in your browser, so your files never leave your device. Need to convert other formats? Try WAV to MP3, FLAC to MP3, or our general audio compressor.
Drop M4A files here
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Supports: M4A audio files (Apple/iTunes format)
How It Works
- 1Upload M4A files
Click or drag and drop your M4A audio files from iTunes, Voice Memos, or any source. Batch conversion supported.
- 2Choose MP3 bitrate
Select 128kbps, 192kbps, or 320kbps depending on your quality needs.
- 3Convert and download
Click Convert to MP3 and download your compatible MP3 files. Need to trim first? Use our Audio Trimmer.
Frequently Asked Questions
What is an M4A file?
M4A is an audio format developed by Apple. It uses AAC (Advanced Audio Coding) compression and is the default format for iTunes purchases, Apple Music downloads, and iPhone Voice Memos. M4A offers slightly better quality than MP3 at the same bitrate, but MP3 has wider device support.
Why convert M4A to MP3?
MP3 is the most universally supported audio format. While M4A works great on Apple devices, some older music players, car stereos, and Android apps struggle with M4A files. Converting to MP3 guarantees your audio plays everywhere. Read our M4A vs MP3 comparison for a detailed breakdown.
Will the file size change?
M4A (AAC) and MP3 are both lossy compressed formats, so file sizes are usually similar at the same bitrate. A 5 MB M4A file will produce roughly a 5 MB MP3 at the same quality setting. The main benefit is compatibility, not size reduction.
Are my files kept private?
Yes. All conversion runs locally in your browser using WebAssembly. Your M4A files are never uploaded to any server. No data leaves your device. See our security page for technical details.
Can I convert iPhone Voice Memos?
Yes. iPhone Voice Memos are saved as M4A files. Transfer them to your computer (via AirDrop, email, or Files app), then upload them here to convert to MP3. This makes them compatible with any device or audio editor.
Is this tool free?
Yes. This M4A to MP3 converter is completely free with no limits, no signup, and no watermarks. Also check out our Audio Compressor to reduce file sizes further, or Extract Audio from Video if you need audio from video files.