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Video → Audio Extractor
Extract MP3/WAV locally in your browser. Supports MP4, MOV, AVI, MKV, WEBM, and more.
Loading FFmpeg core...
No upload. Everything runs locally in your browser.
This tool uses ffmpeg.wasm. Package licenses in this project include @ffmpeg/ffmpeg (MIT) and @ffmpeg/core (GPL-2.0-or-later).
Video to Audio Extractor: Guide
- Intent
- Extract audio from video online: convert MP4/MOV to MP3 or WAV in your browser. A fast way to get audio without installing FFmpeg.
- What it does
- Uses FFmpeg in your browser to remove the video track and export audio as MP3 (chosen bitrate) or WAV.
- Key features
- MP3 (128/192/256k) or WAV, Progress indicator, Rights confirmation gate
- Privacy
- Your video stays on your device. This page downloads the FFmpeg WebAssembly engine; files are never uploaded.
- Best for
- Pulling a voice track from a screen recording or webinar
- Getting audio from a clip so you can edit it in a DAW or share it as MP3
- Anyone searching 'mp3 from mp4 online' or 'extract audio from video'
- Why this tool
- Local-first FFmpeg processing: video stays on your device
- Quick conversion without command line tools
- Choose MP3 for smaller files or WAV for lossless editing
How to use
- 1Confirm you have the rights to process the video (checkbox).
- 2Choose a video file (drag & drop or click).
- 3Pick MP3 (smaller) or WAV (lossless). For MP3, choose the bitrate.
- 4Click Extract audio and download the output.
Common mistakes
- Forgetting to check the rights confirmation box (file picking is disabled until you agree).
- DRM-protected videos often cannot be processed (and should not be).
- Very large files may take a long time or crash the browser tab.
Examples
Webinar -> MP3 (recommended)
Input: webinar.mp4
Format: MP3
Quality: 192k
Output: webinar_audio_YYYYMMDDHHMM.mp3
Lossless export for editing
Input: interview.mov
Format: WAV
Output: a large WAV suited for DAWs/editors.