Image Utility
Image Cropper
Select an exact area from JPG, PNG, and WEBP images and save it as a new file. Use ratio presets, original-pixel coordinates, output quality, and transparency settings.
Upload an Image
Choose one JPG, PNG, or WEBP image to crop.
Crop Area and Output Settings
Create and move a selection on the image, drag its handles to resize it, then generate the result.
Cropped Result
RESULTCrop a photo to the right composition, then resize it
Cropping removes parts of the image; resizing changes its dimensions. Select the area you want to keep in original-image pixels. The exported image has the dimensions of that selection, so a small crop does not gain new detail.
Who this helps
- People preparing profile photos, product thumbnails or article banners.
- People who need an exact rectangular selection instead of guessing with a mouse.
When to use this tool
- Make a square profile image from a wide photo.
- Remove extra transparent space around a logo without stretching it.
From input to a checked result
- 1
Choose a JPG, PNG or WebP image of at most 40 MiB and 60 million pixels.
- 2
Select a free ratio or a preset such as 1:1, 4:3, 3:2, 16:9 or 9:16.
- 3
Drag the selection or enter X, Y, width and height in original-image pixels.
- 4
Choose PNG/WebP to retain transparency. JPEG uses the chosen background color.
- 5
Crop, inspect the result and download. If the destination requires a smaller fixed size, resize the cropped file afterward.
A centered square
- Input
- Source 1600×900px; X 350, Y 0, width 900, height 900
- Result
- A 900×900px crop from the center.
These coordinates leave 350px outside each horizontal edge. They describe dimensions, not a guaranteed output file size.
A 300px profile image
- Input
- Crop the 1600×900px source to 900×900px, then open Image Resizer
- Result
- Resize the square to 300×300px without changing its shape.
Setting a 1:1 ratio chooses the shape of a crop. It does not itself set the final width to 300px.
How it works
The tool constrains the selection to the original image and copies that rectangle with Canvas drawImage into a new canvas of the same width and height. It then exports PNG, JPEG or WebP. The source file is not overwritten.
Limitations
- The selection is rectangular; it does not export a circular avatar mask.
- Cropping does not improve sharpness or enlarge the selected region.
- JPEG cannot retain transparency. Browser encoding can change file size, color appearance and metadata.
- Pixels outside the crop are absent from the result, so keep the original for future edits.
The original and cropped image are processed in browser memory. This tool does not upload them to the win-j server.
References
Related tools
- Image Resizer
Set the final width and height after choosing the composition.
- Solid Background Remover
Remove a uniform background before tidying the image bounds.
Frequently asked questions
Are X and Y measured on the small preview?
No. They refer to pixels in the original decoded image. A scaled preview does not change those coordinates.
Does the 1:1 preset make a 300×300 image?
No. It makes the selection square. Crop first, then resize to the required dimensions.
Can I keep the background transparent?
Choose PNG or WebP with transparency enabled. JPEG fills transparent pixels with the selected background color.
Does cropping remove the need to check upload size?
No. Pixel dimensions and file size are separate limits. Check both in the downloaded result.