toolunio.Video tools
Trim video, reduce file size and extract audio. Processing happens on your device. Files are not uploaded to ToolUnio servers.
No file selected.
Precise trims are re-encoded to MP4. Large files require more CPU and memory.
Compression may produce a larger file when the source is already optimized.
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.