SpeakwiseFree M4A to MP3 Converter: Convert in Your Browser
This free M4A to MP3 converter runs right in your browser. Pick an M4A file, such as an iPhone voice memo, and get back an MP3 in seconds. Nothing uploads while it converts. Your file stays on your device the whole time.
Free. No sign-up. Your file stays on your device while it converts.
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How to convert M4A to MP3
1. Choose your M4A file
Pick an M4A file from your phone or computer, or drop it into the box.
2. Pick a quality
Choose 128, 192 or 320 kbps. 128 is a good match for voice memos.
3. Download your MP3
Your MP3 is ready in seconds. Download it, or turn it into text next.
Why convert M4A to MP3
M4A is the format iPhone Voice Memos uses by default. QuickTime, GarageBand exports and songs bought from the iTunes Store use it too.
MP3 plays almost everywhere: phones, computers, cars and most upload forms. Converting to MP3 makes an M4A file easier to share.
Choosing your MP3 quality
Kbps stands for kilobits per second. It tells you how much sound data the file keeps. A higher number usually means better sound and a bigger file.
128 kbps is the usual choice for one-channel voice memos. 192 kbps is the default for stereo files and suits music. 320 kbps is the highest MP3 setting, for when you want the most detail.
This tool also reads other formats
Besides M4A, this converter reads MP3, WAV, AAC, AIFF and FLAC files. It can also pull the sound out of a MOV or MP4 video.
Whatever you drop in, you get an MP3 out. You can also try WAV to MP3 or MOV to MP3 if you start from one of those instead.
Good to know before you start
This tool handles one file at a time, up to 2 hours long. It checks your file first, so it never freezes partway through a long recording.
It works in modern browsers on iPhone, iPad, Android phones, and Mac or Windows computers, including Chrome, Safari and Edge. Most files convert in a few seconds.
Who this is for
Anyone with an iPhone Voice Memo, a QuickTime recording or an old M4A file that will not play somewhere it needs to. That includes students saving a lecture, journalists filing a clip, and musicians bouncing a quick idea to MP3 for a bandmate. If you want the words from the recording too, try M4A to text after you convert.
Used by recruiters, executives, consultants, and more.
Frequently asked questions
Is this M4A to MP3 converter free?
Yes. It is free, with no sign-up and no email address needed. There is no watermark on your MP3.
Does my M4A file get uploaded?
No. The conversion happens right in your browser, on your own device. Your file is not uploaded unless you choose to transcribe it afterward.
What is an M4A file?
M4A is the format iPhone Voice Memos uses by default. QuickTime, GarageBand exports and songs bought from the iTunes Store also use M4A.
Will the MP3 sound as good as the M4A?
At 192 or 320 kbps, most people cannot hear a difference. Both M4A and MP3 already compress the sound, so there is some small loss, but it is hard to notice.
What other files can I convert here?
This tool also reads MP3, WAV, AAC, AIFF, FLAC, and the sound inside MOV and MP4 videos, plus most other audio files your browser can play.
How long can my M4A file be?
Up to 2 hours. The tool checks your file first and tells you if your browser needs a shorter one.
Can I convert more than one file at once?
No. This tool handles one file at a time.
What devices and browsers does this work on?
It works in modern browsers on iPhone, iPad, Android phones, and Mac or Windows computers, including Chrome, Safari and Edge.
How long does the conversion take?
Most files convert in a few seconds. A long recording can take a minute or more, a bit longer on a phone.