Crop PNG Image Online

PNG is the go-to format for any graphic that needs transparency. Logos, icons, UI elements, stickers, and product cutouts all depend on its alpha channel to sit cleanly on any colored background instead of an ugly white box. That flexibility is exactly why PNG powers so much of modern web and app design. The catch is that most editing tools make a simple crop awkward: you launch heavy software, wrestle with selection tools, and still worry about preserving the transparent edges. For a quick trim or a resized avatar, that overhead is overkill, and most cameras and phones export far larger than necessary so a tight crop also trims wasted pixels.

UnoIMG’s free PNG cropper removes that friction with a visual, browser-based workflow. Drop your file and a draggable box appears over the image; move it, resize from any corner, or lock a preset ratio such as 1:1 for avatars or 16:9 for banners. By default the tool keeps the PNG format, so the alpha channel and every transparent pixel survive the crop untouched. Choose WEBP when you want an even smaller transparent file, or pick JPG only when a solid background is acceptable—and JPG simply fills your chosen color instead of turning transparency black. A Max Width field shrinks the result for the web in one step, and because the crop uses the image’s real pixels, the output dimensions are always exact.

The payoff reaches everyone who works with transparent graphics. Designers trim logo padding and badge art for cleaner layouts; app developers cut icon frames that stay sharp on every screen density; marketers crop sticker and overlay graphics for social cards without losing clean edges. E-commerce stores frame product cutouts for faster category pages, and agencies prepare client deliverables in exact sizes. Teachers crop diagram art for worksheets, and developers slice screenshots for documentation. Social creators reuse the same cropped set across every platform, from profile pictures to story frames. Each result downloads on its own, so you can refine several assets in a single sitting and keep every version visible on screen while you compare them.

Best of all, the whole process is private and free. Cropping runs entirely in your browser, so your PNGs are never uploaded to a server or stored anywhere—nothing leaves your device, which keeps sensitive logos and designs fully on your machine. There is no watermark, no account, and no desktop software to install. If you need transparency later you can keep PNG or switch to WEBP, or export JPG with a background fill; UnoIMG fits naturally into any daily workflow, helping you frame the perfect image in just a few seconds.