KOENJA

Trim & crop video

Pick a range to cut the start and end, crop the frame, and save as MP4.

Drop a video file here

Choose fileor paste with Ctrl + V

MP4 MOV WEBM MKV AVI

Files are processed in this browser. They are not uploaded to a server.

How to use

  1. Drop a video file in the area above.
  2. Drag on the thumbnail strip to select the part to keep. Use the white handles to adjust the start and end, or type the times.
  3. To keep only part of the frame, pick a ratio under Crop above the video, then drag the box on the video to set its size and position.
  4. Click Save edited video.

Fast vs. accurate

Fast copies the selected range without re-encoding. It finishes in seconds and keeps the original quality, but the start snaps to the nearest keyframe, so it may begin slightly earlier than you chose.

Accurate re-encodes the video so the cut matches your times exactly. It takes longer. Cropping or lowering the resolution always uses this mode.

Making shorts and reels

To turn a landscape video into a vertical short, pick 9:16 under Crop and move the box over your subject. Keep the original resolution for the sharpest result.

FAQ

The cut starts a little early.
Fast mode can only cut at keyframes. Switch the processing mode to Accurate for an exact start.
Can I join several videos?
Not yet. You can cut one range from one video.
How do I save only the audio?
Use the Extract audio tool. You can open the same file there in one click.

Other tools