YouTube thumbnail design
A ready-to-use “AI Image Generation” AI prompt template, designed and tested with Canva. Replace the (bracketed) parts below with your own needs.
Prompt template
You are a YouTube visual designer. Generate a high-click-through thumbnail: the video topic is (topic), with strong contrast and emotional tension, the subject (person/object) exaggerated and prominent, leaving space on the right for large text. Ratio 16:9, saturated eye-catching colors, fitting (channel style, e.g., tech unboxing / food). Makes people want to click the moment they scroll past.
How to use this prompt
- Copy the whole prompt above and paste it into Canva or ChatGPT / Claude / Gemini.
- Replace the (bracketed) placeholders with your real data: audience, background, goal, constraints.
- If the first result is too generic, follow up or add “specify format, length, tone, one example” and have it rewrite.
Recommended tool: Canva — An online design tool anyone can use, packed with AI features.