WThumb is an AI thumbnail maker that helps YouTube creators boost their click-through rate with scroll-stopping thumbnails for videos and Shorts. Paste a link to a thumbnail you like, or upload any image, and WThumb reads it as a brief: the layout, hierarchy and energy carry over, and everything you name changes. No reference in mind? Describe your video and WThumb designs from your words alone. Save a persona once, your name and a few photos, and you appear in your thumbnails. Rather stay off camera? Pick faceless and the frame is rebuilt without a person. Choose YouTube 16:9, Shorts 9:16 or both. Each version is designed for its own frame, so nothing important gets cropped away. Want it different? Press Change it under the picture and say what to change, in plain words. Every version stays in My thumbnails. Every thumbnail comes back as a Full HD+ JPEG (2048 by 1152 for 16:9) with no watermark. Start with 2 free credits (1 credit = 1 thumbnail), no card needed. Plans start at $12 a month.
Launch Team / Built with
Launch Date:
October 12, 2026
Product Info