Description
Thumbfa.st is an AI-powered YouTube thumbnail generator built specifically for content creators. Users describe a thumbnail, select saved face and style references, and generate professional thumbnails in seconds with no design skills required. It is powered by Google's Gemini model.
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Person profiles let creators save photos and descriptions of faces to include, so every future thumbnail can feature the exact same face consistently for recognizable channel branding. The Inspiration feature extracts a thumbnail from any pasted YouTube URL and analyzes its style, colors, composition, and mood to save as a reference for matching successful styles. Users can also sketch a rough layout with shapes, arrows, and notes, and the AI reads it and turns it into a finished thumbnail. Each request can generate 1-4 variations, which is recommended for A/B testing.
All thumbnails are generated at YouTube's exact 1280x720 resolution and delivered as high-quality PNG files ready to upload to YouTube Studio with no adjustments. Users can sign up free and get 5 thumbnails to test the platform with no credit card, with a Pro plan at $19/month including 150 thumbnails, an Ultra plan at $49/month including 500, and additional thumbnail packs available.
- CategoryAI Graphic Design Tools
- Pricing ModelFreemium
- DeploymentCloud
- PlatformsWeb
Thumbfa.st's Core Features
AI thumbnail generation from a text description
Person profiles for consistent face across thumbnails
Inspiration feature that extracts style from any YouTube URL
Sketch-to-thumbnail from rough layouts and annotations
1-4 thumbnail variations per request for A/B testing
Exact 1280x720 YouTube resolution output
High-quality PNG delivery ready for YouTube Studio
Powered by Google's Gemini model
How to use Thumbfa.st?
Describe your thumbnail: Enter a text description of what you want.
Add references: Select a saved Person profile for your face and an Inspiration for style.
Sketch (optional): Draw a rough layout with shapes and notes for the AI to follow.
Generate: Create 1-4 thumbnail variations in seconds.
Download and upload: Save the 1280x720 PNG and upload it directly to YouTube Studio.
Thumbfa.st's Use Cases
- Consistent channel branding
- Copying winning styles
- A/B testing
- Sketch-based design
