Image Tools

FREE · LOCAL · NO UPLOAD

Image Cropper

Remove unwanted edges precisely and export a new image region entirely in the browser.

✓ Your image never leaves your device
✓ The image is processed only in this browser tab and is never uploaded.

To prevent OOM, files are limited to 30 MB, input and output to 36 megapixels, either side to 16,384 px, with working memory estimated before allocation.

GUIDE & TECHNICAL NOTES

How to use Image Cropper

Enter a free crop rectangle or use centered 1:1, 16:9, and 4:3 presets.

  1. 01Choose an image.
  2. 02Apply an aspect preset or enter X, Y, width, and height.
  3. 03Crop, preview, and download.

Understanding crop coordinates

X and Y start at the image's top-left corner; width and height define the retained region. Values outside the image are safely clamped.

Uses for common ratios

1:1 is common for avatars, 16:9 for video covers, and 4:3 for slides and photos. Presets create the largest centered rectangle that fits.

Frequently asked questions

Does cropping reduce detail in the retained area?

It does not resize that area, although output format encoding can affect compression quality.

Can I crop a transparent image?

Yes. Choose PNG or WebP to retain transparency.

More image tools

Image Compressor→Image Converter→Image Resizer→Rotate & Flip Image→