Cuescribe

Pick a thumbnail frame from your video

Drop your video. We sample it, rank frames by sharpness (blurry and black frames sink), and show each pick at the sizes YouTube actually displays. Download the frame at full resolution or 1280×720.

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Questions

What size should a YouTube thumbnail be?

1280×720 pixels (16:9), under 2 MB. The 1280×720 download is exactly that.

Why preview it small?

Most people see your thumbnail at about 168 to 360 pixels wide. If the face or text doesn't read at that size, it won't get clicked.