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Editing guide

How to trim a video quickly at keyframes

Create a shorter MP4 by copying compatible tracks and understand why cut points may shift.

Fast trim is not frame accurate

Track copying usually starts at a nearby keyframe, so the actual cut can differ slightly from the requested time.

Trim a video

  1. Choose a local video.
  2. Enter start and end times.
  3. Start the fast trim.
  4. Review the beginning and end before using the result.

Choose the right workflow

  • Use fast trim for speed and unchanged quality.
  • Frame-accurate editing requires re-encoding.
  • Unsupported tracks must be converted first.

Open Video Trim