Thumbly is an AI-powered platform designed for YouTube creators to generate thumbnails, titles, and analyze thumbnail performance. It uses a dataset from YouTube videos to produce designs that align with high-engagement patterns. The tool supports users without design experience through a simple web interface.

The Thumbnail Generator creates multiple options based on user prompts or uploaded images. It focuses on elements like high contrast, emotional expressions, and clear text overlays. Generation takes under ten seconds per set. Customization includes adjustments to colors, fonts, and layout elements.

The Title Generator produces SEO-friendly suggestions that match video content. It emphasizes curiosity-driven phrasing while incorporating keywords. Outputs come in batches of five to ten, with options to regenerate for variety.

The Thumbnail Analysis Tool evaluates uploads on a scale of one to ten. It assesses factors such as visual clarity, emotional impact, and mobile compatibility. Results include specific improvement recommendations.

Thumbly integrates with YouTube workflows for direct uploads. Competitors include Canva for general design versatility and vidIQ for analytics depth. Thumbly excels in YouTube-specific optimization. Paid plans offer unlimited generations, while the free tier limits to basic analysis.