AI Tools
AI Thumbnail Analyzer
Upload your thumbnail and get an honest score out of 100 with specific fixes — text size, contrast, focus and curiosity.
Open toolAI Thumbnail Idea Generator
Good thumbnails are designed, not decorated: one subject, two or three words, one emotion, contrast you can read from across the room. For any topic, this generator returns five distinct concepts — each with the exact on-thumbnail text, the visual composition, the expression or mood, the dominant colours, and a one-line reason it should work. The five are deliberately different angles on the same video (result, mistake, curiosity, comparison, story), because the best concept depends on what footage and photos you actually have. Pick the one you can execute well, not the one that sounds cleverest.
This tool is powered by AI running on a free service tier, so a generation can occasionally take a little longer or ask you to retry at busy times. Your input is sent only to produce your result — it is not stored.
How to use this tool
- Enter your video topic or final title.
- Click Generate thumbnail ideas.
- Pick the concept whose visual you can actually shoot or design.
- Keep the on-thumbnail text to 3 words or fewer — every concept here is written that way.
Worked example
For “I Tried Waking Up at 4 AM for 30 Days”, the concepts include a split before/after face with the text “DAY 1 vs 30”, a giant alarm clock visual, and a tired-vs-fresh contrast — each with a colour plan that stays readable at phone size.
Frequently asked questions
Why only 2–3 words of text per thumbnail?
At phone size, a thumbnail is glanced at for a second. Three words can be read in that glance; eight cannot. The title carries the detail — the thumbnail's text only has to create the itch the title scratches.
Should my face be in every thumbnail?
Faces with clear emotion outperform almost everything in most niches — but an object with mystery (a result, a disaster, a before/after) can beat a face when the emotion is weak. The concepts mix both so you can test.
What colours work best?
Contrast matters more than any specific colour: a bright subject on a dark background, or the reverse, with one accent colour for the text. The concepts specify colour plans in those terms rather than trendy palettes.
Can I generate ideas before filming?
That is the professional order: thumbnail and title first, then film the video that delivers them. Generate concepts at the idea stage and shoot the exact expressions and objects they call for.
How do I choose between the 5 concepts?
Shrink each to the size of a postage stamp in your head — the one still readable and intriguing wins. If two survive, make both and let YouTube's own thumbnail test (Test & Compare) decide with real viewers.