Generate thumbnails, social posts, and blog covers via API or no-code Studio — YouTube, Instagram, LinkedIn, blogs and more.
{ "title": "▍", "format": "youtube", "style": "faceless"}Type a title and generate your first thumbnail in seconds — straight from the browser.
No-Code & Plugins
Connect in minutes — no coding required
Works with any platform that supports HTTP requests. Read more · See featured partners
Generate thumbnails, blog covers, social graphics, and branded visuals — programmatically via API for developers, or visually inside Studio for marketers.
Send a title, get a production-ready thumbnail. No templates, no layout to design.
{ "title": "10 crypto scams", "format": "youtube" }
Auto-discover proven thumbnail patterns from a live-updated library.
Upload 1–6 reference thumbnails and clone your brand style at 80–100% fidelity.
Auto-composite your face into every thumbnail with usePhoto: true.
Sharp logo overlay on every generation — pixel-perfect, never AI-distorted.
Graphic-driven thumbnails without a person on camera.
The no-code visual dashboard. No API key, no code, just a form.
All styles: Faceless, Personalized & Branded
From API key to automated thumbnail generation in under a minute. Integrate into your publishing pipeline, CMS, or automation tool with a single endpoint.
Sign up and get your API key in seconds. Start with the free tier — 50 credits per month, no credit card required.
Make a single POST request with your video title, target platform, and preferred thumbnail style. The API handles the rest — AI design, style optimization, and image rendering.
Receive a production-ready thumbnail in WebP or PNG, returned in one JSON response. Ready to integrate into any content automation workflow.
Start free with 50 credits. Scale as you grow — no hidden fees.
Try the thumbnail API with no commitment.
For solo creators and small projects.
For content teams and automation workflows.
For agencies and high-volume pipelines.
Discover how the thumbnail API fits your workflow — from platform-specific use cases to no-code integrations.
Proud Partners
Hand-picked products that plug in on either side of the ThumbAPI pipeline — before your video ships, and after your thumbnail is packaged.
AI video generation
Where the video comes from before ThumbAPI packages it.
YouTube thumbnail tester (Chrome extension)
Preview and stress-test every thumbnail against real competitors before it goes live.
Want to become a partner? Talk to us
Everything you need to know about integrating automated thumbnail generation into your workflow.
A thumbnail API is a REST endpoint that lets you programmatically generate thumbnail images for videos, blogs, and social media posts. ThumbAPI uses AI to create high-quality, platform-optimized thumbnails from a single POST request, which fits naturally into content automation tools, CMS integrations, and publishing pipelines. If you'd rather work visually, the ThumbAPI dashboard offers the same generator with a manual interface, so non-developers on your team can create thumbnails without writing a single API call.
ThumbAPI generates thumbnails for YouTube (1280x720), Instagram (1024x1024), X/Twitter (1200x675), LinkedIn (1200x627), and blog posts (1200x630). Output is delivered as optimized WebP by default (perfect for blog posts and lightweight web use), or as high-quality PNG when you need lossless detail for editorial or print-style assets.
Two independent boolean flags control the look: usePhoto integrates a personal photo as the main subject (saved in the dashboard or sent inline as photoImage, max 2MB), and useLogo overlays your brand logo onto the final image (saved logo or inline logoImage, max 1MB). Omit both for a faceless, text-and-graphic design — or combine them for a personalized + branded thumbnail in a single request.
Send a POST request with your content title, target platform format, and an optional category (one of 13 niches like tech-saas, business-finance, or fitness-wellness). The API uses AI to analyze proven design patterns in your niche and generates a unique, click-optimized thumbnail, all in a single API call.
Absolutely. ThumbAPI is built for automation. Use it in your CI/CD pipeline, CMS publishing hooks, video upload workflows, or any content automation tool. The REST API works with any programming language: JavaScript, Python, Go, Ruby, PHP, and more.
Yes, all three are first-class integrations. Use an HTTP Request node in n8n, the HTTP module in Make.com, or Webhooks by Zapier to POST to the ThumbAPI generate endpoint with your title and format. Connect it to any trigger (new YouTube video, new blog post, spreadsheet row) and generate thumbnails automatically. Step-by-step guides: thumbapi.dev/integrations/n8n, thumbapi.dev/integrations/make, thumbapi.dev/integrations/zapier.
Yes. Inside the ThumbAPI web app you can save custom assets (a profile photo, a brand logo, or a custom dataset reference) once and reuse them across requests. The API picks them up automatically, so you don't have to pass the image in each generate call. Useful for personalized and branded thumbnails generated on autopilot.
Most thumbnails are generated in under 25 seconds depending on the complexity. The response includes the thumbnail image as base64 WebP or PNG, all in a single API call with no polling required.
Yes. The free tier includes 50 credits per month (a standard thumbnail costs 10 credits) with access to all formats and styles. No credit card required. Paid plans start at $19/month with 750 credits.
You'll receive a 429 HTTP status code with a clear error message. Your credit balance resets at the start of each billing period. Upgrade your plan at any time to get more credits. Failed generations are automatically refunded so you never pay for thumbnails you didn't receive.
Developers and content teams use ThumbAPI to automate visual content creation. Free tier available — no credit card required.