Image Cropper
Crop images to specific rectangular coordinates with numeric boundary controls.
Run tool
Crop any picture to exact rectangular dimensions with this clean online utility. To begin, upload your source picture or supply encoded image data, then set the numeric coordinates for the crop boundaries. The left and top values define the starting corner inside the original picture, while the right and bottom values establish the opposite boundary. The tool interprets these coordinate inputs directly against the decoded pixel dimensions of your uploaded file, ensuring accurate framing. If your entered values fall outside the picture dimensions, the tool automatically fits the boundary coordinates to the file edges. It also adjusts the right and bottom borders so the selection maintains at least a one-pixel width and height. When you run the crop operation, the processed image generates immediately in its original file format, or as a standard PNG if format information is unavailable. Download or copy your trimmed graphic for web publishing, avatars, or design layouts.
Instructions
- Select and load your image file or paste encoded image data into the designated input field.
- Enter numeric values for the left and top coordinates to mark the upper-left boundary of your crop.
- Specify the right and bottom coordinates to mark the lower-right boundary of your intended area.
- Click Run to process the image with your chosen rectangular bounds.
- View and save the resulting cropped image displayed in the result area.
Examples
- Trimming a 1200x800 banner: Enter 100 for Left, 50 for Top, 700 for Right, and 450 for Bottom to extract a 600x400 section from the upper-left area.
- Extracting a square profile avatar: Set Left to 200, Top to 100, Right to 600, and Bottom to 500 to produce a 400x400 cropped region from a larger portrait.
FAQ
How are the crop coordinates measured?
The coordinates represent numeric pixel positions measured from the top-left origin of the decoded image.
What happens if entered coordinates exceed the image dimensions?
The tool automatically clamps the coordinates to the image boundaries, ensuring that right is greater than left and bottom is greater than top by at least one unit.
Which output file format will the cropped image use?
The cropped image is generated in the source file format whenever format information is present; otherwise, it is saved as a PNG.
Can an image be cropped without specifying every coordinate?
Yes. If coordinates are omitted, the default values are applied: 0 for left and top, and 100 for right and bottom.