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About Video Cropper
The Visual Video Cropper & Canvas Re-framer crops video dimensions with an interactive draggable crop box, aspect ratio presets (16:9, 9:16 Vertical, 1:1 Square, 4:5 Instagram Feed), and frame preview.
How to Use Video Cropper
Step 1
Upload a video file (MP4, WebM, MOV).
Step 2
Drag and resize the crop box over your desired video area, or choose an aspect ratio preset.
Step 3
Preview playback to ensure the subject stays in frame.
Step 4
Click "Export Cropped Video".
Practical Use Cases for Video Cropper
Reframing 16:9 Landscape Videos for 9:16 TikTok / Instagram Reels
Crop widescreen horizontal camera videos into vertical 9:16 frames centered on the subject for TikTok and Instagram Reels.
Cropping Letterbox Black Bars from Widescreen Videos
Remove permanent black letterbox bars embedded inside video files to reclaim full screen real estate on mobile displays.
Input & Output Examples
Cropping 1080p Landscape Video to 1:1 Square (Instagram)
Video: `product_demo.mp4` (1920x1080), Aspect Ratio Preset: `1:1 Square (1080x1080)`
Cropped 1080x1080 square video centered on product action exported in MP4 format
Key Features & Performance
- ✓Interactive visual crop box with corner handles and live video scrubbing.
- ✓Aspect Ratio Presets: Free Crop, 16:9 (Landscape), 9:16 (Vertical Story), 1:1 (Square), 4:5 (Portrait Feed), 21:9 (Ultrawide).
- ✓Auto-centering and rule-of-thirds grid overlay for aesthetic framing.
- ✓100% Client-Side WebAssembly / Canvas video engine.
- ✓1-Click Download cropped video.
Key Terminology & Definitions
Spatial Video Cropping
Discarding outer pixel regions of video frames to produce a video with smaller dimensions or a different aspect ratio.
Rule-of-Thirds Grid
A visual compositional guide dividing the frame into nine equal rectangles to help position key focal points aesthetically.