Designed for Clicks.
Conquer the Algorithm.
Stop guessing. Start dominating. We fused a world-class AI designer with a powerful YouTube strategist to give you an unfair advantage. Create thumbnails that stop the scroll and titles that demand a click.
The Thumbnail Generator
Go from a simple idea to a masterpiece in seconds. Describe your vision, and let our AI art director generate stunning, high-impact thumbnails designed to capture attention and reflect your brand.
The SEO Co-Pilot
Master the algorithm. Our AI analyzes top-performing content in your niche to generate algorithm-friendly titles, descriptions, and tags that get your videos discovered.
Why You'll Love Thumbi.app
We've packed everything you need into a simple, powerful tool.
Go beyond simple templates. Our AI analyzes your creative prompt to generate unique, context-aware backgrounds and styles. It understands concepts like 'minimalist', 'vibrant', or 'cinematic' to create a thumbnail that truly matches your vision.
Forget tedious manual cutouts. Upload your photo and our AI instantly identifies the subject, removes the background with precision, and enhances the lighting and quality to make it pop. It’s like having a professional editor built-in.
Your message, perfectly delivered. The AI intelligently places your tagline and subtagline, selecting bold, readable fonts and applying outlines or shadows to ensure maximum visibility against any background. No more unreadable text.
And So Much More...
Style Presets
Quickly apply complex styles like 'Cinematic' or 'Photorealistic' with a single click.
AI Prompt Assist
Turn your simple ideas into detailed, effective prompts for the AI to get better results.
Font & Text Styling
Fine-tune your message with controls for font styles and text positioning.
Variation Generation
Love a design? Instantly create slightly different versions to find the perfect one.
Multi-Language Support
Generate thumbnails with text in multiple languages to reach a global audience.
Credit Packs
Need more generations? Easily top up your account with credit packs that never expire.
Keeping it Simple
Go from idea to finished thumbnail in under a minute.
Write Your Prompt
Describe the creative style and background you envision. The more descriptive, the better!
Add Your Text & Image
Enter your main tagline and optional subtagline. Then, upload the main image you want to feature.
Generate & Download
Click the generate button and watch the AI bring your vision to life. Download your 1280x720 thumbnail.
Ready to Conquer the Algorithm?
Your unfair advantage is just a click away. Stop leaving views on the table and start creating content that gets noticed.
Powered by Intelligent Design
Our generative core goes beyond templates, using a multi-model approach to create truly unique visuals.

Semantic Prompt Analysis
We use a fine-tuned language model to interpret the creative intent and emotional tone of your prompt. This allows our system to select appropriate color palettes, compositions, and style modifiers before generation even begins.

Multi-Layered Image Synthesis
Your thumbnail isn't a single generated image. The AI creates a layered composition: a base background, stylized subject matter with clean masking, and dynamically rendered text elements. Each layer is optimized independently for quality and clarity.

Context-Aware Composition
After generating the core elements, a specialized vision model analyzes the result for visual balance and text readability. It adjusts font weight, text placement, and subject position to ensure your message is clear and the thumbnail is eye-catching.
Find a Plan That's Right for You
Whether you're a daily creator or just need a few thumbnails, we have an option for you.
- 55 Generations per Month
- Best Value for Creators
- Cancel Anytime
- 110 Generations per Month
- For Power Users & Agencies
- Cancel Anytime
- 10 Additional Generations
- Perfect for power users
- Credits Never Expire