YouTube Thumbnail Preview

Paste a YouTube video, Shorts, live-stream or youtu.be link and select Show thumbnails. An 11-character video ID also works; channel and playlist links do not identify a single video. Astrotor displays the thumbnail sizes it can load. Each card shows the image dimensions and a JPG download button. This tool downloads the cover image, not the video or audio.

Not every video has every thumbnail size. Astrotor checks several versions and lists only those it can load, so a missing larger version does not necessarily mean the tool failed. Compare the pixel dimensions on the cards and choose the largest available image for your use. The download keeps the dimensions supplied by YouTube; the tool does not upscale the image or create detail that is missing from the source.

Choose your design in Test your own cover to compare 368 × 207 desktop and 176 × 99 mobile previews. Check whether the main text, subject and contrast still work at the smaller size; details that look clear on a large canvas may disappear. Your image is processed on your device and is not published to YouTube. These previews are comparison sizes, not exact reproductions of every YouTube screen or a prediction of clicks.