3GP
3GP Video
A low-bandwidth video format for older mobile phones, prioritizing file size over quality.
Commonly used for
Older mobile phone recordings
3GP to M4A Converter
Convert 3GP files to M4A free in your browser — no signup, no install, and the file is never uploaded to a server. M4A opens almost anywhere, so the result works where 3GP did not.
Completely free
Files are never uploaded
No signup required
Drop files or click to select
3GP → M4A
What changes in this conversion
- M4A opens almost everywhere, so the converted file will work on devices and programs that refused the original 3GP.
- Only the audio track is kept — the video picture is discarded, so the result is far smaller than the original 3GP file.
How to use
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Add your 3GP file
Drag the 3GP file onto the drop area above, or click it to pick a file from your device. You can add several files at once.
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Confirm M4A as the output
M4A is already selected as the output format on this page. You can pick the bitrate — higher keeps more of the sound, lower makes a smaller file.
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Run the conversion
Press the convert button. Video is re-encoded frame by frame on your own machine, so a long clip can take several minutes. The tab has to stay open.
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Download the M4A file
When it finishes, download the M4A file. Converting multiple files gives you the option to download them together as a ZIP.
About these formats
M4A
M4A Audio
An audio file in an MPEG-4 container, usually compressed with AAC. iPhone voice memos and iTunes purchases use this format.
Commonly used for
iPhone voice memos, Apple ecosystem audio
Frequently asked questions
Is converting 3GP to M4A really free?
Yes. 3GP to M4A conversion is completely free with no signup, no watermark, and no daily limit on the free plan for ordinary use.
Are my 3GP files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so the 3GP file never leaves your device. That is also why it works without an internet connection once the page has loaded.
Does the picture disappear when I convert 3GP to M4A?
Yes — M4A is an audio format, so only the soundtrack is extracted. The video track is dropped, which is usually the point when you want just the audio.
Is there a file size limit for 3GP to M4A conversion?
The free plan handles files up to 200MB. Because processing happens on your own device, very large files depend on your computer's memory rather than a server quota.
Convert 3GP files to other formats
Convert other formats to M4A
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