How the cropper and the guides on this site are built, tested and kept accurate — and how to tell us when something is off.
The tools and guides are produced by the PNGCropper team. The focus is deliberately narrow — image cropping and closely related tasks — so the advice stays practical and specific rather than generic. We are not affiliated with Adobe, Google, Microsoft or any other vendor named on the site; product names are used only to describe how their software works.
The cropper is tested against real images across PNG, JPG, WebP and GIF inputs, and across PNG, JPG and WebP outputs. We verify the things that actually matter for cropping: that transparency is preserved on PNG/WebP export, that circle crops produce transparent corners, that exact-pixel output matches the numbers entered, and that the crop samples from the full-resolution source so quality is not lost. Guides are written to match the current versions of the apps they describe and updated when interfaces change.
All cropping happens in your browser using the HTML canvas. The dimensions, file sizes and previews you see come from the actual output, not placeholder numbers. The only generated content is the clearly labeled “Try a sample” image, which exists so you can test the tool without uploading your own file.
The site is free and supported by advertising. Ads are labeled and kept separate from the tools, and advertisers have no influence over the guides. See the advertising policy for details.
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