Choose a frame from the video preview and save it as a PNG image.
Extract Video Frame as PNG
Trim video, reduce file size and extract audio. Processing happens on your device. Files are not uploaded to ToolUnio servers.
No file selected.
Drag the start/end markers or enter exact seconds. Export re-encodes to MP4 on your device.
Compression may produce a larger file when the source is already optimized.
Video and audio are re-encoded locally. Some unusual source codecs may not contain audio.
Play or seek to a frame and save it as a PNG. Uses the browser's video decoder, not FFmpeg.
The output is a new MP4; the source file stays unchanged.
Video timeline
Add clips, arrange their order and choose which portion of each to keep. Mix an optional audio track without sending files to a server.
No clips added.
Output is a 640 × 360 H.264 MP4 at 24 fps with stereo audio. Long projects require substantial device memory. Select a clip below to preview it and adjust its start/end times.
Captions
Edit times in seconds and text, then export SRT/VTT or embed a selectable subtitle track into MP4. Playback of embedded tracks varies by player; the separate SRT works with more players.
Choose a video to begin.