M4A to MP3
Upload an M4A or AAC file and convert it to a widely compatible MP3 — free and processed entirely in your browser.
About the M4A to MP3 Converter
M4A is Apple's default audio format — used for voice memos, GarageBand exports, and music from Apple devices — but it isn't as universally supported as MP3, especially on older devices, some car stereos, and non-Apple apps. Converting to MP3 makes an M4A file playable virtually everywhere.
This tool decodes your M4A or AAC file and re-encodes it to MP3 entirely in your browser, using the same MP3 encoder that powers our other audio tools. Nothing is uploaded to a server.
How to Convert M4A to MP3
Step 1
Upload your M4A file
Drag and drop an .m4a or .aac file, or choose one from your device.
Step 2
Convert to MP3
Your audio is decoded and re-encoded to MP3, right in your browser.
Step 3
Download your MP3
Save the converted MP3 file, ready to play anywhere.
Frequently Asked Questions
Why convert M4A to MP3 if M4A is already compressed?
MP3 is far more universally supported — some car stereos, older devices, and apps that don't play M4A handle MP3 without issue, trading a small amount of extra compression for much wider compatibility.
Does this work on voice memos and GarageBand exports?
Yes — any standard M4A or AAC file works, including voice memos, GarageBand/Logic exports, and non-DRM Apple Music purchases (older DRM-protected purchases won't decode).
Will I notice a quality difference?
Effectively indistinguishable from the source M4A for most listening, even though both formats are lossy.
Is my audio file uploaded anywhere?
No. Decoding and encoding both happen entirely in your browser.