M4A to MP3 converter
Open one or more M4A files, such as iPhone voice memos, pick a bitrate and press Convert. Each file becomes an MP3 you can download, or all of them together as a ZIP.
- One file or a batch
- Free, no sign-up
Runs in your browser. Nothing you type or open is uploaded. Free to use, no account. More audio tools
How to use it
- Open your M4A, AAC, WAV or OGG files.
- Choose the bitrate and whether to keep stereo or make mono.
- Press Convert, then download each MP3 or the ZIP.
About the conversion
M4A files from iPhone voice memos and iTunes usually hold AAC audio, which some car stereos, older players and upload forms do not accept. MP3 plays almost everywhere. The page decodes each file with your browser's audio engine and encodes it again as MP3 at the bitrate you choose.
For voice notes, 128 kbps mono keeps files small and clear. For music, 192 kbps or more keeps the detail. Files are converted one after another with a progress bar, and the names stay the same with an .mp3 ending.
Private by design
Privacy
Everything runs in this page and stays on your device. Your recordings are converted inside this page and saved straight to your downloads.
This page also shows Google ads, which can use cookies. Privacy and cookies explains how.
Questions
How do I convert an iPhone voice memo to MP3?
Share the memo from the Voice Memos app to Files, open it here, and press Convert. On a computer, drag the memo file onto this page.
Can I convert many files at once?
Yes. Open several files together. They convert one after another, and Download all saves them as a single ZIP.
Which bitrate should I choose?
128 kbps is plenty for speech and keeps files small. Choose 192 or 256 kbps for music, or 320 kbps if you want the most detail.
Can it convert other formats too?
Yes. Any audio your browser can play converts the same way, including WAV, OGG, AAC and FLAC in most browsers.
From the same developer
- Mic to Speaker: the matching app.
