DevKits

Image Cropper — Crop Images Online (Free, No Upload)

Crop images to a custom region or a fixed aspect ratio (1:1, 4:3, 16:9, and more). Draw the crop area with your mouse. Runs entirely in your browser.

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Drop an image here, or

Cropping runs in your browser — nothing is uploaded.

Crop images to a custom region or a fixed aspect ratio (1:1, 4:3, 16:9, and more). Drag on the image to pick the crop area. Runs entirely in your browser.

What is Image Cropper?

Cropping is the fastest way to reframe a photo, remove distractions, or produce social-media-ready aspect ratios. Every online cropper follows the same pattern (upload → drag → download), but this one skips the upload. Drag anywhere on the image to draw the crop region; the aspect ratio presets (1:1, 4:3, 3:2, 16:9, 9:16, 3:4) lock the shape while you drag, so you never end up with an almost-square crop by accident.

How to crop an image online

  1. 1Drop an image onto the page.
  2. 2Pick an aspect ratio preset or 'Free' for arbitrary crops.
  3. 3Drag on the image to draw the crop area. The exact pixel coordinates and dimensions are shown live.
  4. 4Pick an output format and click 'Crop'.
  5. 5Download the cropped image.

Use Cases

Prepare social media images

Instagram square (1:1), reels (9:16), YouTube thumbnail (16:9) — pick the ratio and drag.

Cut to a poster/print aspect

3:2 for classic photo prints, 4:3 for legacy TV, 16:9 for widescreen displays.

Trim margins

Remove unwanted borders on scans or screenshots.

Tips & Best Practices

  • Aspect ratio locks are strict — the tool will constrain your drag to keep the shape.
  • The overlay shows the exact pixel region so you can screenshot the coordinates for reproducibility.
  • Crop first, resize second — cropping preserves pixel density, resizing after crop is easier to reason about.

Frequently Asked Questions

How do I make a perfect square crop?

Click the 1:1 preset. The tool locks the aspect ratio while you drag — the resulting crop is guaranteed to be square.

Can I crop by exact pixel coordinates?

The current version is drag-only, but the exact pixel coordinates and dimensions are shown as you draw so you can visually match a target size.

Is my image uploaded?

No. Cropping happens entirely in your browser via HTML Canvas.

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