FFmpeg Media Lab

A visual browser workstation for no-reencode video/audio workflows. Cut, concat, extract, replace, remux and export quickly.

Engine

FFmpeg wasm runtime

Engine is not loaded yet.

Source media

Operation setup

Trim clip

Cut a start/end range from source video. Stream copy only.

Extract full audio

Take first audio stream from video without re-encoding.

Extract ranged audio

Cut audio by start/end range from video source.

Replace audio

Keep source video stream and swap with a new audio stream.

Concat two videos

Join two clips quickly when stream params match.

Mute video

Drop all audio streams and keep original video stream.

Change container

Move streams into another container without re-encoding.

Trim range

Tip: stream copy snaps near keyframes. Use frame preview for better cut points.

Start (seconds) End (seconds)

Trim output container

Newest result appears at the top. Download directly or preview inline.

No output yet. Run an operation to generate media files.

Includes FFmpeg command arguments for each operation.

No logs yet.