How It Works

1. Upload Your Video — Select any standard video file (MP4, WebM, MOV, etc.). Since this runs in your browser, your file is never uploaded anywhere, ensuring complete privacy.
2. Set Timestamps — Preview the video and use the "Use current" buttons to accurately mark where you want the clip to start and end.
3. Lossless Trimming — We use FFmpeg WebAssembly with the -c copyparameter. This instructs the engine to copy the video and audio streams directly without re-encoding them. The result is a lightning-fast export with exactly zero loss in quality. (Note: trimming occurs at the nearest keyframe).