Free MP4 to MP3 Converter
Convert MP4 to MP3 directly in your browser. No uploads — your files never leave your device. Fast, private, and free.
How to Convert MP4 to MP3
Add Your MP4 Files
Drag and drop or browse to select MP4 videos. Add multiple files for batch conversion.
Choose MP3 Quality
MP3 is pre-selected. Adjust the bitrate — 128 kbps for compact files, 192 kbps for balanced quality, 320 kbps for high fidelity.
Click Convert
The audio extraction runs in your browser via WebAssembly. No file is uploaded to any server.
Download Your MP3 Files
Grab each file individually or download the full batch. Ready to play on any device.
Why Use This MP4 to MP3 Converter
A browser-based tool that extracts MP3 audio from MP4 video. No cloud processing, no software install, no privacy trade-offs.
100% Local Processing
FFmpeg WebAssembly decodes the MP4 container and encodes MP3 entirely on your device. Not a single byte leaves your machine.
Free Forever, No Account
No signup, no login, no premium tier. Convert MP4 to MP3 without limits — completely free.
Works on Any Device
Chrome, Firefox, Safari, Edge on Mac, Windows, Linux, Android, or iOS. Open the page and go.
Fast Conversion
WebAssembly runs at near-native speed. A typical 5-minute video converts to MP3 in seconds.
Batch Processing
Queue dozens of MP4 files and convert them all to MP3 in one session. Each file is processed independently.
No Software to Install
No desktop app, no browser plugin. This converter runs directly in your browser — zero setup required.
Who Converts MP4 to MP3
MP4 is the most common video format. Extracting the audio track as MP3 is a daily task for millions.
Podcasters
Record on camera, then extract MP3 for your podcast feed. One recording, two distribution channels.
Music Lovers
Downloaded a music video? Pull the audio as MP3 and add it to your portable library.
Students
Turn recorded lectures into MP3 for offline listening during commutes and workouts.
Content Creators
Extract voiceover or soundtrack from video assets. Reuse audio in reels, stories, or presentations.
Language Learners
Convert video lessons to MP3 for immersive listening practice anywhere, anytime.
Meeting Archivists
Zoom and Teams recordings as MP4 are huge. Convert to MP3 to slash size by 90% while keeping every word.
MP4 to MP3 — FAQ
Extract Audio from MP4 Now
Drop an MP4 file, pick your bitrate, and download MP3 — free, instant, and private.