Crop video (change aspect ratio)
Crop a video to vertical 9:16, square 1:1, 4:5 or 16:9, choosing which part of the frame stays.
How to useCrop the frame.
Available in: 
Crop video (change aspect ratio): what it is for
The tool changes the framing of a video, cutting the sides or the top to reach the right aspect ratio: vertical 9:16, square 1:1, feed 4:5, 16:9 or 4:3.
The preview shows the area that will stay, and a slider lets you choose the position of the crop. The video is not sent to any server: everything is processed in your browser, completely privately.
How to use
- Upload the video.
- Choose the aspect ratio and adjust the position.
- Crop and download the MP4.
When to use it
- Turning a horizontal video into a vertical one for Reels and TikTok.
- Square video for the feed.
- Removing borders and unwanted parts.
Frequently asked questions
How is this different from Trim video?
Trim video removes a stretch of time (start and end). Cropping changes the framing: it cuts the sides or the top to change the aspect ratio of the picture.
I don't want to lose the sides. Is there another way?
Yes. Use the Vertical video with blurred background tool: it fits the whole video into the vertical format and fills the rest with a blurred copy of the video itself.
Is the video uploaded to a server?
No. Everything is processed in your browser.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.