YouTube thumbnail size checker
Check a thumbnail against YouTube's own limits before you upload it: width, height, ratio, weight and format, all measured in your browser.
Choose an image to start.
Drop an image here, or click to choose oneThe file stays in your browser. Nothing is uploaded.
Drop images to add them as your thumbnails
Put this tool in your own page
Thumbnail tools
- YouTube thumbnail previewDrop in your thumbnail and title and read them back in a simulated Home feed, search page and suggested column, on desktop and on a phone.
- Compare YouTube thumbnailsPut two or three thumbnails side by side under the same title, in the same simulated feed, and swap their order to see which one you notice first.
- YouTube thumbnail resizerResize any image to 1280 × 720 or 3840 × 2160 without stretching it — fit it inside the frame, or fill the frame and crop the overflow.
- YouTube thumbnail compressorGet a thumbnail under YouTube's 2 MB phone limit, or any size you name, by spending quality before it ever costs you resolution.
- YouTube thumbnail cropperCrop a photo or a screenshot to a clean 16:9 thumbnail: drag to choose the part that matters, zoom in, and save it at 1280 × 720.
- YouTube thumbnail testerTest a thumbnail the way it will actually be seen: at rail size, in grayscale, with red-green colour vision, and under the interface that covers it.
- YouTube title length checkerSee where each YouTube surface cuts your title off — measured by typesetting it at the real width of each column, not by counting characters.
- Compare YouTube titlesPut two or three titles side by side in the same place, against the same thumbnail, and see which survives the cut and which reads first.