M4A to MP3 Converter — iPhone Audio to MP3, Free
Convert M4A and AAC files from iPhones, voice memos and iTunes into universally playable MP3. Free, no sign-up, and your files never leave your device.
Free, with no sign-up and no watermark. The file is processed in your browser and never uploaded.
M4A (AAC audio in an MP4 container) is what iPhones, Voice Memos and many downloads use. Some players, older cars and websites only accept MP3. This tool converts M4A and AAC files — including iPhone ringtones (.m4r) — to MP3 inside your browser.
Step by step
- Upload M4A files: Drag in .m4a, .m4r or .aac files, or click to browse.
- Pick a bitrate: Choose a bitrate at least as high as the original (voice memos are often 64–128 kbps).
- Convert: Click Convert to MP3 and the files download.
Handy for
Voice memos
Share iPhone voice memos with Android or Windows users.
Websites that require MP3
Upload forms and some e-learning platforms only accept MP3.
Car stereos
Older USB car players often ignore M4A files.
Editing
Bring audio into tools that don’t read AAC.
Good to know
Protected purchases (old iTunes DRM files) can’t be converted.
For editing rather than sharing, convert to WAV with the Audio Converter instead.
Questions
Will quality improve?
No — both formats are lossy, so the MP3 can only be as good as the M4A. Choosing a high bitrate avoids losing more.
Are my audio files uploaded anywhere?
No. Decoding, editing and encoding all happen inside your browser tab. Nothing is sent to a server, and closing the tab discards everything you haven't downloaded.
More Audio Tools tools
- OGG to MP3 — Convert OGG, Opus and WhatsApp voice notes into MP3 files that play everywhere.
- FLAC to MP3 — Shrink lossless FLAC music into MP3 for phones, cars and older players.
- MP3 to WAV — Decode MP3 into uncompressed 16- or 24-bit WAV for editing software, CDs and samplers.
- Audio Cutter & Ringtone Maker — Select part of a song on its waveform, add fades and save it as a clip or a phone ringtone.
- Audio Joiner — Join several audio files in any order into one track, with optional crossfades or gaps.
- Online Voice Recorder — Record your voice with a live level meter, pause and resume, then save as MP3 or WAV.