Are you building a faceless YouTube channel?

Paste your video title. Get 3 thumbnail concepts you can render today.

Thumbnail Concept Lab is a prompt you paste into Claude Code. It art-directs your thumbnail instead of leaving you to guess — the exact words on screen, the focal subject, the layout, the colour plan, a squint-test score, and an image prompt you paste straight into any AI image tool.

No spam — just the tool. Unsubscribe anytime.

See it work

Real input in, real result out.

You paste in
VIDEO TITLE: Why Do We Fear Ghosts? (The Horror Inside Your Head)
NICHE: faceless psychology-horror explainer channel — simple, creepy, philosophical
WHAT THE VIDEO SHOWS: voiceover + AI images. It explains that the fear of ghosts is a brain glitch — pattern recognition, sleep paralysis, and the brain seeing intent where there is none.
AUDIENCE: 18-34, likes creepy psychology explainers watched at night
…
↓
squint score 92 — the one to render
ON-SCREEN TEXT:  IT'S NOT REAL
ANGLE:           the emotion — fear on a face, answered by the words
FOCAL SUBJECT:   a man's face, half-lit, eyes wide, staring past the camera
3 ELEMENTS:      face (left) + doorway shadow (right) + 3 words (bottom left)
COLOUR PLAN:     bone white + dark teal, one hot amber rim light
SQUINT SCORE:    92 — eyes and shadow read at stamp size; one emotion,
                 three words, …

That's the pre-loaded example — the tool re-runs on your own input, as many times as you want.