MP4 to MP3 Converter
Extract audio from MP4 videos and save as MP3 files
MP4 to MP3 Converter
Drag and drop your MP4 file here
or click to browse (max 500MB)
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This converter works entirely in your browser. Your files are never uploaded to any server.
The conversion is performed using FFmpeg, which runs locally on your device.
Features
Our free online converter offers several advantages over other conversion services:
1
100% Private
Your files never leave your device. All processing happens right in your browser.
2
No Installation Required
No need to download or install any software. Just open the page and start converting.
3
High Quality Conversion
We use industry-standard FFmpeg technology to ensure high-quality audio extraction.
Frequently Asked Questions
How does the MP4 to MP3 converter work?
Our converter uses WebAssembly to run FFmpeg directly in your browser. When you upload an MP4 file, it extracts the audio track locally on your device and saves it as an MP3 file without ever being sent to a server.
Is there a file size limit?
Yes, currently we limit file sizes to 500MB to ensure smooth performance in the browser. For larger files, you might need to use a desktop application.
Will this affect the audio quality?
Our converter extracts the audio at a high bitrate of 192kbps, which maintains excellent quality while keeping file sizes reasonable.
Cap is the open source Loom alternative
Record, edit, and share video messages with Cap. 100% open source and privacy focused.