Generate YouTube, Instagram, and blog thumbnails from a title via REST API. Free tier plus paid plans from $19/mo. Built for n8n, Zapier, Make.com.
ThumbAPI is an AI-powered thumbnail generation service delivered as a REST API and a no-code studio. It converts a text title into a production-ready thumbnail, social graphic, or blog cover in under 25 seconds, without requiring template design work. The tool auto-discovers thumbnail patterns matched to the target platform and niche, and supports uploading 1-6 reference images so brand style can be cloned for consistent output.
Beyond generation, ThumbAPI offers photo compositing (placing a creator's photo into a thumbnail via a usePhoto parameter), branded logo overlays with pixel-perfect placement, and a faceless mode for graphic-only designs. Output is available in WebP and PNG across six platforms including YouTube, Instagram, LinkedIn, Twitter/X, and blogs.
The service is built for automation workflows, with native integrations for n8n, Make.com, Zapier, WordPress, and MCP, letting teams generate thumbnails programmatically as part of existing content pipelines rather than through manual design tools.
Yes, ThumbAPI's Free plan gives 50 credits per month with watermarked output, no credit card required to start.
ThumbAPI generates thumbnails and graphics for YouTube, Instagram, LinkedIn, Twitter/X, and blogs, output as WebP or PNG.
Yes, you can upload 1-6 reference images as a custom dataset to clone your brand's visual style at 80-100% fidelity (available on paid plans).
Yes, it has native integrations with n8n, Make.com, Zapier, WordPress, and MCP for use in existing content pipelines.
ThumbAPI creates production-ready thumbnails from a text title in under 25 seconds.