PNG, JPG, WebP — any format works
How it works
Drop or select any image. It loads directly in your browser — nothing is sent to a server.
Set the tolerance (how aggressive the trim is), add optional padding, and toggle white-space trimming.
Preview the before/after, then download the tight-cropped PNG with one click.
Who uses this tool
Auto-cropping empty space is a surprisingly common task across design, development, and game creation.
Sprite sheets and individual game assets often export with large transparent borders. Tight-cropping them makes positioning in code exact and reduces atlas size.
Icons exported from design tools often carry extra canvas space. Cropping to the exact artwork bounds keeps your icon grids pixel-perfect.
A logo PNG with hidden whitespace breaks alignment in headers and emails. Trim it once and your logo sits exactly where you place it.
Scanned documents and photos often have wide white borders. Enable the white-trim option to remove them automatically without needing a graphics app.
Frequently asked questions
Is this PNG cropper free?
Yes — completely free with no sign-up, no watermarks, no limits, and no ads. Crop as many images as you need.
Are my images uploaded to a server?
No. Everything runs entirely in your browser using the HTML5 Canvas API. Your images never leave your device — nothing is uploaded, stored, or transmitted anywhere.
What image formats are supported?
You can upload PNG, JPG, WebP, GIF, BMP, and any other format your browser supports. The output is always a transparent PNG, which preserves any transparency in your image.
What does the tolerance slider do?
Tolerance controls how transparent a pixel needs to be before it is treated as empty. At 0, only fully transparent pixels (alpha = 0) are trimmed. Higher values also catch near-transparent or anti-aliased edge pixels.
How do I crop white space instead of transparent space?
Check the "Also trim white / near-white pixels" option. This treats any pixel with RGB values above 240 as empty, removing white or off-white borders even if the image has no transparency channel.
What is the padding option for?
After finding the tightest crop, padding adds a specified number of pixels back around all four sides. This is useful when you want breathing room around your content — common for icons, buttons, and game sprites.
Will cropping a PNG reduce the file size?
Yes. Removing empty pixels reduces the total pixel count, which directly reduces the PNG file size. An image with content filling only a small area of a large canvas can shrink dramatically after cropping.
What is the difference between cropping and resizing?
Cropping removes pixels from the edges to change the canvas dimensions without scaling the content. Resizing scales all pixels to a new size. This tool only crops — your artwork is never stretched or resampled.
Does this work on mobile?
Yes. The tool is fully responsive and works on phones and tablets. Tap to browse images from your photo library, cloud storage, or files app.