ThumbnailMaker

What is ThumbnailMaker?

ThumbnailMaker turns a YouTube video into a finished thumbnail. Paste the link and it writes the brief first: one scene, two to four words to put on it, and the style that fits. Then it makes the image at YouTube's shape (1280×720, or 1080×1920 for Shorts), draws the words in, reads them back to fix any wrong letter, and grades the result at feed size. When a result is almost right, you correct it in a sentence and the rest stays put. On Pro, three concepts go straight into YouTube's A/B test; on Studio, the MCP server and API work from ChatGPT, Claude or code. Plans from $12 a month; the brief and a thumbnail check are free.

Key features

• Writes the brief from a YouTube link: scene, words and style
• Draws the words in, reads them back and fixes any wrong letter
• Checks every thumbnail at feed size, duration corner kept clear
• Correct one thing in a sentence; the rest stays put
• 14 styles, Shorts covers and 4K export
• Three concepts for YouTube A/B tests, plus MCP and API