That is the first topic we want to say before we call anything else: What are the greatest YouTube thumbnail sizes? By google’s personal recommendations, the example should be 1280 x 720 pixels, with the minimal width of 640 pixels. The proportion of 16:9 is perfect as it’s used most frequently in YouTube players and trailers. That surprises most people, but it sounds reasonable; while the thumbnail can remain smaller when showing up at searches, it can be extended to the whole picture’s size when it shows up as a suggestion for the next watch. For that reason, you need a larger picture size that will be scaled down, rather of a smaller size that can be scaled up. Placing the featured example is an extremely simple process that only gets a couple of clicks. After you’ve uploaded the picture, you’ll find a series of default screenshots in the bottom of the picture settings. To the turn of this thumbnails, you’ll find the switch that tells “ Custom Thumbnail. ” but click it to make the thumbnail of the pick from the computer.t so you don’ ’t get to care about creating an attention-grabbing thumbnail from scratch.