Thumbfa.st

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.

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.

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?

1. 1

   Describe your thumbnail: Enter a text description of what you want.

2. 2

   Add references: Select a saved Person profile for your face and an Inspiration for style.

3. 3

   Sketch (optional): Draw a rough layout with shapes and notes for the AI to follow.

4. 4

   Generate: Create 1-4 thumbnail variations in seconds.

5. 5

   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

FAQ from Thumbfa.st

• What is Thumbfa.st?

  Thumbfa.st is an AI-powered YouTube thumbnail generator built for content creators. You describe your thumbnail, select saved face and style references, and generate professional thumbnails in seconds with no design skills.

• How does the AI generation work?

  It uses Google's Gemini model to create thumbnails from your text description, and when you add a Person profile and an Inspiration, the AI incorporates them for consistency and style matching.

• What are Person profiles?

  Person profiles let you save photos and descriptions of faces you want in thumbnails. Upload once, and every future thumbnail can feature that exact face consistently for channel branding.

• How does the Inspiration feature work?

  Paste any YouTube video URL and Thumbfa.st extracts its thumbnail, analyzes the style, colors, composition, and mood, and saves it to your library so you can match successful styles.

• Can I try it for free?

  Yes. You can sign up for free and get 5 thumbnails to test the full platform, with no credit card required.

• What format and resolution are thumbnails?

  All thumbnails are generated at YouTube's exact 1280x720 resolution and delivered as high-quality PNG files that you can upload directly to YouTube Studio with zero adjustments.