Calculate perfect crop dimensions, preview crop areas, and optimize images for any platform
Enter dimensions or upload an image
Select aspect ratio or fixed size preset
Choose where to crop from
See dimensions and file size reduction
See exactly what will be cropped with real-time canvas preview. Blue border shows keep area, gray shows removal.
10+ aspect ratio presets and 8 social media size presets. Perfect for Instagram, Facebook, Twitter, and more.
9 position presets plus manual control. Crop from center, corners, or any custom position.
Choose a target aspect ratio (like 16:9 or 1:1) and the calculator determines the largest possible crop area that fits that ratio.
Best for: Matching specific proportions while maximizing image retention
Specify exact pixel dimensions needed (like 1200×630 for Facebook). The crop area is calculated to match those dimensions exactly.
Best for: Meeting platform requirements with exact dimensions
Most common. Balances composition and works for most subjects.
Keeps horizontal centering, adjusts vertical position.
Keeps vertical centering, adjusts horizontal position.
Preserves top-left content, useful for logos or text.
Keeps top-right corner, good for specific compositions.
Preserves bottom content, useful for foreground focus.
Enter exact X, Y coordinates for precise placement.
Adjust preset positions by entering new values.
System prevents crops outside image bounds.
Cropping removes portions of an image, keeping the remaining pixels at their original resolution.Resizing changes the pixel dimensions of the entire image. Cropping is useful for changing composition or aspect ratio, while resizing adjusts overall size. Often you'll crop first, then resize for final dimensions.
Cropping itself doesn't reduce quality - you're simply removing pixels, not degrading them. The remaining pixels retain their original quality. However, if you crop very aggressively (retaining less than 40% of the image), you might have fewer pixels than needed for your intended use, which could require upscaling later and result in quality loss.
Consider your subject's position and the story you want to tell. Center works for symmetrical subjects.Rule of thirds (using the grid) is ideal for dynamic compositions. For faces, position eyes at the top third line. For action, leave space in the direction of movement. Use the preview to experiment with different positions.
Instagram supports three main aspect ratios: 1:1 (square) for traditional posts and profile pictures,4:5 (portrait) for maximum vertical space in feeds (1080×1350px), and 9:16 (vertical) for Stories and Reels (1080×1920px). Portrait format (4:5) gives you 56% more screen space than square in mobile feeds.
Yes! You can manually enter exact X, Y position and width, height values for complete control. The calculator will automatically constrain your values to ensure the crop stays within image boundaries. This is useful when you need precise cropping for specific requirements not covered by presets.
Our calculator estimates file size based on pixel count and typical compression ratios. For JPEG, we factor in quality settings. For PNG, we use average compression. Actual file sizes depend on image complexity - photos with lots of detail compress less than simple graphics. Use estimates as a guide, but the actual cropped file size may vary by 10-20%.
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