What this tool does
Make a deliberate crop and orientation change without uploading the source image or relying on a remote editor.
How to use it
- Choose a JPG, PNG or WebP image and confirm its dimensions.
- Enter the crop rectangle and choose rotation and flips.
- Process the preview, inspect edges and download the PNG.
Formula and method
The browser decodes the source, selects the entered pixel rectangle, applies rotation around its center and optional horizontal or vertical reflection, then exports a new PNG.
Example
For a 1200×800 source, cropping x=100, y=50, 600×400 and rotating 90° produces a 400×600 output.
Useful for
- Correcting photo orientation
- Cropping a precise product area
- Creating a mirrored or rotated PNG copy
Limits and notes
Coordinates are measured from the source top-left and must remain inside it. PNG export may be larger than the original, metadata and animation may be lost, and very large images can exceed device memory.
Frequently asked questions
Does this change the original file?
No. It creates a separate PNG download and leaves the selected file unchanged.
Can I crop by dragging?
This version uses exact pixel coordinates for keyboard-friendly, reproducible crops.