Convert M4A to MP3 Free - WhatsApp Voice Notes
Convert M4A files (WhatsApp audio, iPhone) to universal MP3. Compatible with all players.
All processing happens in your browser
Select a file
Or drag and drop here
Supported formats: MP4, WEBM, MOV, M4A, OGG, WAV
Limits: 100 MB, 30 minutes
How to Convert M4A to MP3
Select your M4A file
Upload M4A audio from WhatsApp, iPhone, or any source
Instant conversion
We convert from M4A (AAC) to MP3 in your browser
Download compatible MP3
MP3 file that works on any device or editor
Frequently Asked Questions - M4A to MP3
What is M4A and why convert it to MP3?
M4A is Apple's audio format (iPhone, WhatsApp). Although it has good quality, not all players support it. MP3 is universal and works on 100% of devices.
How do I convert WhatsApp voice notes to MP3?
WhatsApp voice notes are usually in M4A or OPUS format. Just export the audio from WhatsApp to your device, then upload it here. We'll convert it to MP3 without uploading to any server.
Do I lose quality when converting M4A to MP3?
Minimal. Both are compressed formats. We convert to 128 kbps, enough to maintain excellent quality for voices, podcasts, and casual music.
Why are my WhatsApp audios private here?
Your M4A audio never leaves your browser. Other converters upload your file to servers (privacy risk). We process everything locally with WebAssembly.
Can I edit the MP3 later in Audacity?
Yes, the resulting MP3 is standard and compatible with Audacity, Adobe Audition, and any audio editor.
Does it work on iPhone and Android?
Yes, PrivAudio works perfectly on iPhone, Android and tablets. Just need Safari, Chrome or any modern browser. No apps required.