UFOZoo

Image Cropper — Crop Images Online, Remove Unwanted Areas

Crop images online with an interactive overlay. Select the area you want, remove unwanted edges. Output JPEG/PNG/WebP. 100% browser-based, no upload.

Features

  • ✓Crop any region of your image with an interactive drag overlay
  • ✓Drag handles to resize the selection area — drag corners or edges
  • ✓Move the selection by dragging inside the crop box
  • ✓Manually enter crop width and height for pixel-precise selection
  • ✓Lock aspect ratio to maintain proportions while resizing the crop
  • ✓Reset to full image with one click to start over
  • ✓Output as JPEG, PNG, or WebP — defaults to original format
  • ✓Adjustable quality for JPEG and WebP output (10-100%)
  • ✓Real-time preview — see the crop area and final result instantly
  • ✓Paste from clipboard (Ctrl+V) for instant editing
  • ✓All processing happens in your browser — no server uploads
  • ✓100% free with no file size limits or watermarks

How to Use

  1. 1Open an image by clicking the drop area, dragging a file onto it, or pasting from clipboard (Ctrl+V).
  2. 2The crop overlay appears automatically on the full image. Drag the corner or edge handles to adjust the selection area.
  3. 3Drag inside the crop box to reposition the selection to frame the content you want to keep.
  4. 4Optionally enter exact width and height values in the sidebar for pixel-precise cropping.
  5. 5Select output format (JPEG, PNG, WebP) and adjust quality if needed.
  6. 6Click Save to save the cropped image — the result is ready instantly.
  7. 7How to crop a photo to a specific aspect ratio: open your image, enable Lock Aspect Ratio, enter your desired ratio (e.g., 16:9 for widescreen, 1:1 for social media profiles). Drag the corner handles to resize the crop area while the ratio stays fixed.
  8. 8How to crop a face or subject from a group photo: open the group photo, drag the crop box to frame the desired face or subject. Use the corner handles to adjust the selection precisely. Save as PNG to preserve quality for further editing.

Frequently Asked Questions

Does cropping change the pixel dimensions of my image?

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Yes. Cropping removes the area outside your selection, so the output image size equals your crop region's pixel dimensions. The image is not scaled — only the canvas is trimmed to your selection.

Is there a maximum image size I can crop?

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Since all processing happens in your browser, the limit depends on your device's available memory. Most images under 50MB work fine. Very large images (100MB+) may cause performance issues on lower-end devices.

Does cropping reduce image quality?

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No. Cropping does not re-encode or compress the selected area — the crop region keeps its original quality. If you choose JPEG or WebP output, the quality setting only affects the final export, not the crop itself.

Can I crop to a specific pixel size?

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Yes. Enter exact width and height values in the sidebar under the Dimensions section. The crop box adjusts to match your input, staying centered. Enable Lock Aspect Ratio to keep proportions when changing one dimension.

What image formats are supported?

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The tool accepts JPG/JPEG, PNG, WebP, AVIF, BMP, GIF, and SVG as input — any format the browser can render. Output can be saved as JPEG, PNG, or WebP. PNG is recommended when you need lossless quality.

Is my image uploaded to a server?

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No. All processing happens entirely in your browser using the HTML5 Canvas API. Your image stays on your device and is never uploaded, stored, or transmitted anywhere. You can even use this tool offline after the page loads.

Are there any watermarks or usage limits?

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No watermarks, no registration, no file size limits, and no hidden charges. This tool is completely free to use for any purpose — personal, commercial, or educational.

Can I undo a crop after saving?

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Once the image is cropped and saved, the removed areas are permanently discarded. To preserve the original, keep a backup before cropping. The Reset button restores the full selection before you save.

Can I crop multiple images at once?

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No. This tool processes one image at a time. For batch cropping, you would need to process each image individually. Each crop selection is specific to the image content, so manual per-image cropping ensures the best results.

How do I crop an image to a perfect square?

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Enable Lock Aspect Ratio and set both width and height to the same value, or enter a 1:1 ratio. The crop box will maintain a perfect square as you resize it. This is useful for profile pictures, thumbnails, and Instagram posts.

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