PNG Auto Cropper

PNG Auto Cropper batch-trims transparent PNG images to the true bounds of each image’s visible content.

It is made for folders of icons, stickers, logos, cut-outs, sprites, and design assets that all have different shapes and amounts of transparent padding. Each PNG is analysed individually, so every export is cropped accurately to its own artwork rather than forced into one fixed crop.

• Trim empty transparent edges automatically • Process an entire folder of PNGs at once • Add consistent padding around every cropped image • Set an alpha threshold to remove faint transparent halos • Preview original and cropped dimensions before exporting • Choose separate input and output folders • Keep originals untouched • Prevent accidental overwrites with collision-safe filenames PNG Auto Cropper runs locally on your Mac. No account, upload, or internet connection is needed to process your images.

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