Paste a YouTube URL. Extract the style. Generate your own.
The Inspiration Library lets you reference any winning thumbnail without copying it. Paste a URL, let FatThumb analyse style and composition, then use that signal in your own generation.
How it works
Three steps from zero to upload-ready.
Paste a YouTube URL or upload an image
Drop in a link to any YouTube video or upload a thumbnail directly. FatThumb fetches the thumbnail and runs an AI style analysis in seconds.
Review the extracted style signal
The analysis surfaces colours, composition patterns, mood, and focal-point placement — a structured breakdown of what makes the reference thumbnail work.
Reference it in your next generation
Select the Inspiration entry when writing your prompt. The style signal is passed into the generation engine alongside your Person profile and prompt text.
Features
Everything you need for the click.
Any YouTube video, instant analysis
Paste the video URL and FatThumb retrieves the thumbnail and runs an AI breakdown — no manual downloading or cropping required.
Colours, composition, mood
The AI extracts the primary colour palette, focal-point placement, background treatment, and overall mood so you understand what drives the click — not just what it looks like.
Save and reuse references
Every analysed thumbnail is saved to your workspace Inspiration Library. Reference the same winning style across multiple thumbnail prompts without re-pasting the URL.
Bring your own reference
Already have a screenshot or saved thumbnail you like? Upload it directly instead of pasting a URL. FatThumb accepts the same image-based analysis flow.
Style + face, together
Combine an Inspiration reference with a Person profile in one prompt. The Inspiration drives the creative direction; your face stays locked in.
Start from a proven reference
Staring at an empty prompt box is the biggest creative block. Starting from a thumbnail style that already works turns a 30-minute decision into a 30-second one.
FAQ
Questions & answers
What does the Inspiration Library do?
It lets you paste a YouTube URL (or upload a thumbnail image) and extract a structured style signal — colours, composition, mood — that you can then use as a creative reference when generating your own thumbnails. It analyses the what and why of a thumbnail's design without reproducing it.
Does using an Inspiration reference copy the original thumbnail?
No. The analysis extracts abstract style signals (colour palette, composition patterns, focal-point placement) which guide the generation direction. The output is a new image created from your prompt and Person profile, influenced by the style — not a copy of the original.
Can I upload a reference image instead of pasting a URL?
Yes. If you already have a thumbnail screenshot saved, you can upload it directly. FatThumb runs the same AI style analysis and saves it to your Inspiration Library.
How many Inspiration entries can I save?
Free workspaces can save up to 10 Inspiration entries. Pro, Ultra, and Lifetime plans have no limit — analyse as many reference thumbnails as you find useful.
Can I combine an Inspiration reference with a Person profile?
Yes, and it is the recommended workflow. Attach both a Person profile (for face consistency) and an Inspiration reference (for style direction) to the same prompt. The generation engine handles both signals simultaneously.
Does the Inspiration Library work for non-YouTube thumbnails?
The URL-based path is optimised for YouTube. The upload path accepts any image, so you can reference thumbnails from other platforms by saving and uploading them directly.
Turn any winning thumbnail into your creative starting point
Generate your first 5 thumbnails free — no card, no designer, your face consistent from the first run.