Video Trimmer

Our Video Trimmer lets you cut any section from a video file right in your browser. No software to install, no uploads to a server — your videos stay completely private.

How to Trim a Video

1. Upload your video file by clicking the upload area.
2. Use the built-in player to preview the video and identify the section you want.
3. Enter the start and end times in mm:ss format (e.g., 01:30 for 1 minute 30 seconds).
4. Load the engine, then click "Trim Video".
5. Download your trimmed video clip.

Key Features

• Fast stream copy: Uses codec copy mode to trim without re-encoding for instant results.
• No quality loss: The original video and audio streams are copied exactly.
• Private processing: All work happens in your browser with WebAssembly.
• Multiple formats: Works with MP4, MOV, WebM, and AVI files.

What does "stream copy" mean?

Stream copy mode cuts the video without decoding and re-encoding it. This is extremely fast and preserves the original quality, but the cut points are limited to keyframes in the video.