HTML/CSS to Image API - Automate your image generation
Convert HTML to an image (jpg, png, webp). Renders images exactly like Google Chrome. Works with PHP, JavaScript, Ruby, .NET and more.
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HTML/CSS to Image is a powerful API service that converts HTML and CSS code or public URLs into high-quality images rendered exactly like Google Chrome, ideal for developers automating dynamic visuals.
🚀 Overview
HTML/CSS to Image API enables instant generation of images from HTML/CSS snippets or live web URLs, handling JavaScript execution, custom fonts, and responsive designs without queues or concurrency limits.
This project solves the challenge of creating scalable, precise screenshots and graphics for social media cards, reports, invoices, and marketing materials, eliminating the need to manage headless browsers or infrastructure yourself.
It's built for developers, indie makers, and teams who need reliable image automation. Launched in 2018 by Code Happy, LLC, it was created to focus on maintaining the best possible image generation API, allowing users to prioritize their own products.
✨ Key Features
- Screenshot any public URL or render custom HTML/CSS with full JavaScript support, Google Fonts, and device emulation (including mobile, dark mode).
- Precise cropping via CSS selectors, viewport customization, delays for dynamic content, and formats like PNG (transparent), JPEG, WebP, or PDF.
- Template API for reusable designs with variables, batch processing for multiple images, and integrations for AI workflows.
- No queues, unlimited concurrency, and upcoming features like enhanced MCP Server for Cursor/Claude.
🛠 Tech Stack
- Frontend: JavaScript, HTML/CSS (live demo editor), Jekyll for docs
- Backend: HTTP REST API (reported ASP.NET)
- Rendering: Headless Chrome
- Auth: Auth0
- Hosting/CDN: Amazon CloudFront, Cloudflare Workers (docs)
👥 Who Is This For?
This project is useful for:
- Developers who want to automate screenshots and dynamic images in apps
- Teams looking for social media previews, charts, and reports as images
- Indie makers building tools with visual outputs like certificates or ads
📸 Screenshots / Demo
- Live demo: https://htmlcsstoimage.com
- GitHub: https://github.com/htmlcsstoimage
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Freemium — 50 free images every month to start, with paid subscription plans for higher volumes (overages at $10/1k images), enterprise custom pricing. (Explain briefly.)
Is the source code available?
No — proprietary API service, but open-source client libraries (JavaScript etc.) and documentation available at https://github.com/htmlcsstoimage
Can I contribute?
Yes — submit issues or PRs to the docs repo (https://github.com/htmlcsstoimage/docs), share feedback, or request features via support@htmlcsstoimage.com.
📬 Contact & Links
- Website: https://htmlcsstoimage.com
- GitHub: https://github.com/htmlcsstoimage
- Twitter/X: https://x.com/htmlcsstoimage
- Email: support@htmlcsstoimage.com
Built with ❤️ and kept warm on WarmIndex.
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