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SulusCast is the Sulus video product for async demos, walkthroughs, and client updates. Record, edit, and share — on a plan that stays free.

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Tools/MP4 to MP3 Converter

MP4 to MP3 Converter

Extract audio from MP4 videos and save as MP3 files

MP4 to MP3 Converter

From:
WEBMMP4MOVAVIMKV
→
↓
To:
WEBMMP3GIF

Drag and drop your MP4 file here

or click to browse (max 500MB)

This converter works entirely in your browser. Your files are never uploaded to any server.

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 Remotion technology to ensure high-quality audio extraction.

Frequently Asked Questions

How does the MP4 to MP3 converter work?

Our converter uses Remotion (remotion.dev) 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.

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