MP4 to MP3 Converter - Free Online Tool | Compresso
Extract audio from MP4 videos to MP3 format. Fast, secure, and private - all processing happens in your browser. No file uploads required.
Drag MP4 files here or click to select
Supported formats: .mp4 • Maximum file size: 100MB
Feature in development
This feature is under development. We're working on integrating FFmpeg WebAssembly for audio conversion.
Extract Audio from MP4 to MP3
Extract audio tracks from MP4 video files and save as MP3. Perfect for creating audio versions of videos or extracting music.
✓ Benefits
- • Privacy - files never leave your browser
- • Extract audio from videos
- • Much smaller file sizes
ℹ️ Information
- • Formats: .mp4 → MP3
- • Max size: 100MB per file
- • Adjustable bitrate settings
Frequently Asked Questions
Are my audio files safe during conversion?
Yes! All audio conversions happen locally in your browser using WebAssembly. No audio files are uploaded to our servers.
What audio quality can I expect?
Our converter maintains high audio quality with customizable bitrate settings. You can choose from various quality presets or set custom parameters.
What is the maximum audio file size?
You can convert audio files up to 100MB in size, which accommodates most songs and audio recordings in common formats.
How long does audio conversion take?
Audio conversion typically takes 10-60 seconds depending on file size and target format. All processing happens in your browser.
Your privacy is protected
All files are processed locally in your browser. No data is sent to our servers.