What is WThumb?

WThumb is an AI thumbnail maker for YouTube. You paste a link to a thumbnail you like or describe your video, and it remakes the design around your title, with your face or faceless. It also includes a searchable library of high-performing thumbnails with outlier scores you can recreate as a brief.

How to use WThumb?

Open the Studio and paste a link to a YouTube video whose thumbnail you like, upload an image, or describe your video. A short chat asks for the format (16:9 or 9:16), your face or none, the exact words, and any changes. Press Make; each finished thumbnail or revision uses 1 credit. Sign in with Google or email to save results to your gallery.

Core features of WThumb

Recreate a thumbnail from a pasted YouTube link or uploaded image
Generate from a text description of your video
Persona support: appear in thumbnails or go faceless
16:9 YouTube and 9:16 Shorts formats, designed per frame
Full HD+ output (2048×1152 / 1152×2048), no watermark
Library of thousands of thumbnails with outlier scores, searchable and filterable
Plain-word revisions via the pencil edit
Private gallery of every version