Why Tools Ku
- 100% free, no signup
- ffmpeg.wasm local
- No video upload
- For podcasts and ASR prep
Keep the sound, drop the video—meetings, courses, and clips export in-browser without cloud transcode queues.
Combine with Trim, Compress, or Convert MP4 as needed.
Steps
- Add video (Chrome/Edge recommended)
- Pick output format
- Wait for local ffmpeg
- Download audio
FAQ
- Uploaded?
- No.
- Slow?
- CPU-bound wasm—long files take time.
- Formats in?
- Common MP4/MOV/WebM usually work.
- Quality?
- Re-encode may lose; WAV is larger/lossless.
- Mobile?
- Desktop recommended.
- Signup?
- No.