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images · trim
Auto-Crop Image
Removes a uniform border: the corner colour is taken as the frame and every edge is trimmed until the content starts. Exact content box, nothing scaled; lossless PNG out. An image with no uniform border is returned unchanged — and it says so.
A little guidance. A better result.
How to use Auto-Crop Image
Trim a uniform border to the exact content box — nothing scaled, lossless PNG out.
Prepare your input
Open an image with a uniform outer border.
Use the workspace
Review the automatically detected content box.
Check your result
Save and check that faint edges were not trimmed.
Know the limits
The corner colour defines the border. Non-uniform backgrounds may remain unchanged or need manual cropping.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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