Extract Audio from Video — Fast & Private
Need just the audio from a video? This tool extracts the audio track from any video file and saves it as a high-quality M4A (AAC) file. Whether you're saving music, extracting a podcast, or ripping audio from a lecture recording, the entire process happens in your browser — no upload required.
AAC Bitrate Guide
| Bitrate | File Size (per min) | Quality | Best For |
|---|---|---|---|
| 128 kbps | ~1 MB | Good | Podcasts, audiobooks, speech |
| 192 kbps | ~1.5 MB | Very Good | Music, general listening |
| 256 kbps | ~2 MB | Excellent | High-fidelity music, archival |
How It Works
This tool uses your browser's built-in WebCodecs API to demux the video container and extract the audio track. If the audio is already AAC (the most common codec in MP4 files), it is extracted directly without re-encoding, preserving the original quality. Otherwise, the audio is decoded and re-encoded to AAC at your chosen bitrate.
Privacy & Security
Your video file is processed entirely on your device using browser-native APIs. No data is sent to any server. No external libraries are downloaded — the codecs are built into your browser.