🎵MP4 → MP3

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Extract audio from an MP4 video to MP3 in your browser using ffmpeg.wasm. Trim with start/duration and choose bitrate.

or drop a file here
⚡On‑device
✅No watermarks
🔒Private by default
⚙️Setup
Note: Processing runs entirely in your browser and can be CPU‑intensive. If conversion fails, try a lower bitrate or shorter duration.
🧾Preview & Download
Select a video and click Convert to generate the MP3 and download it.
How this tool works
  1. Upload MP4 — Choose a video or paste a direct URL. Files stay on your device.
  2. Set options — Pick bitrate and optionally trim with start time and duration.
  3. Convert locally — We run ffmpeg.wasm in your browser to extract audio to MP3.
  4. Download MP3 — Save the MP3 with no watermarks.