Last updated: March 2026
What Is the Video Cropper?
The Video Cropper is a free online tool that crops or resizes videos to any aspect ratio — perfect for reformatting content across social media platforms. Over 300,000 creators search for video cropping tools monthly to convert landscape YouTube videos into vertical TikTok/Reels format, create square Instagram posts from widescreen footage, or remove unwanted edges from their recordings.
Upload your video, drag the crop frame to select the area you want to keep, and download the result. Choose from social media presets like TikTok 9:16, YouTube 16:9, and Instagram 1:1, or enter a custom aspect ratio. Everything is processed entirely in your browser using FFmpeg compiled to WebAssembly — your video never leaves your device.
How to Crop a Video Online
Upload your video file by dragging it onto the tool or clicking to browse. The first frame of your video appears with a draggable crop box overlay. Select an aspect ratio preset from the toolbar — social media options like TikTok 9:16, YouTube 16:9, and Instagram 1:1 are available, along with standard ratios and a custom option.
Drag the crop box to position it over the area you want to keep. Resize it by dragging any corner handle. The rule-of-thirds grid inside the crop box helps you compose your frame. When you're satisfied with the selection, click “Crop Video” to process. The tool applies FFmpeg's crop filter to extract your selected area at the original video quality.
Cropping vs. Resizing: When to Use Each
Cropping removes parts of the video frame. Use it when you need to change the aspect ratio (landscape to portrait, for example) or remove unwanted elements from the edges of your footage. The output resolution equals the dimensions of your crop selection — a 500×500 crop from a 1920×1080 video produces a 500×500 output.
Resizing scales the entire video frame to new dimensions. Everything in the original stays visible, just smaller or larger. Use resize when you need to meet specific resolution requirements — downscaling a 4K video to 1080p for faster uploads, or matching exact pixel dimensions required by a platform or display.
The resize mode includes presets for common resolutions: 4K (3840×2160), 1080p (1920×1080), 720p (1280×720), and 480p (854×480). You can also enter custom pixel dimensions and optionally lock the aspect ratio to prevent distortion.
Privacy and Browser-Based Processing
Most online video cropping tools require you to upload your file to a remote server. Your personal videos, business content, and private recordings pass through third-party infrastructure where they could be stored or analyzed. Our tool processes everything locally using WebAssembly — the FFmpeg library runs directly in your browser tab and your video data never touches a network connection.
You can verify this by opening your browser's developer tools and monitoring the Network tab during processing. Zero data is transmitted. This makes the tool safe for cropping sensitive content like security footage, client presentations, or any video you wouldn't want a third party to access.