Image Cropper
Crop and reframe photos with custom aspect ratios, rotation, and presets for Instagram, YouTube, and stories.
Client-side calculations and instant parameter controls are initializing. All processing occurs securely in your browser.
How to Use the Image Cropper
- 1 Select an image to crop.
- 2 Choose a preset aspect ratio (1:1 Square, 4:5 Portrait, 16:9 Landscape, 9:16 Story, or Freeform).
- 3 Rotate 90 degrees or adjust zoom as needed.
- 4 Download your cropped image in PNG, JPG, or WebP format.
Mathematical Formula & Principle
Cropped Output = Canvas Draw Image with Sub-region Matrix Coordinates
Calculations are performed with IEEE floating point mathematical precision directly in your device memory.
Worked Examples
Profile Avatar Framing
Extracts exact focus area without quality degradation.
Frequently Asked Questions
- Can I rotate an image while cropping?
- Yes, click the Rotate 90° button to orient sideways or upside-down photos before exporting.
- Will cropping reduce my photo resolution?
- Cropping extracts the selected pixels at full native resolution without artificial downscaling.
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