How to Convert Video to MP3 (Extract Audio) Online Free
Extract the audio from any video and save it as an MP3 — right in your browser, with nothing uploaded to a server.
June 3, 2026
Video to MP3 — free, no sign-up
Drag & drop · Instant download
Why Extract Audio from Video?
Sometimes you only need the sound, not the picture — a lecture you want to listen to on the go, the audio from an interview, music from a performance, or a podcast recorded as video. Converting video to MP3 gives you a small, portable audio file that plays anywhere.
Private by Design
The Kinsutools Video to MP3 tool processes your file entirely in your browser using WebAssembly. Your video is never uploaded to a server — it stays on your device the whole time. That makes it both private and fast for reasonable file sizes.
How to Convert Video to MP3 (Step by Step)
Step 1: Open the Video to MP3 tool Go to the Kinsutools Video to MP3 converter.
Step 2: Upload your video Drag and drop your video file (MP4, MOV, WebM, and more are supported).
Step 3: Extract the audio Click "Convert". The tool extracts the audio track and encodes it as an MP3. Larger videos take a little longer since everything runs locally.
Step 4: Download your MP3 Download the audio file, ready for your phone, music player, or podcast app.
Tips
- File size: Because processing happens in your browser, very large videos (over ~500MB) may be slow on lower-powered devices. Trim the video first if possible.
- Quality: MP3 audio quality depends on the original — audio can't be better than the source recording.
- Copyright: Only extract audio from videos you own or have permission to use.
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