HTML Anything - Agentic HTML Editor Powered by AI

Overview

HTML Anything is an open-source "agentic" editor: paste raw content (Markdown, CSV, JSON, SQL, or plain text) and let an AI agent build it into polished, ship-ready HTML. The clever part is that it reuses the coding-agent CLIs you already have installed, so there's no separate API key required and no token cost beyond your current session.

It supports 8 coding-agent CLIs: Claude Code, Cursor, Codex, Gemini, Copilot, OpenCode, Qwen, and Aider. It ships with 75 skill templates across 9 output surfaces: magazines, slide decks, posters, social cards, prototypes, data reports, Hyperframes, and more.

How to use

1. Clone the repo and install dependencies:

   git clone https://github.com/nexu-io/html-anything
   cd html-anything
   pnpm install
   

2. Start the dev server:

   pnpm -F @html-anything/next dev
   # → http://localhost:3000
   

3. Paste your content, pick a skill template, and let the agent render. Watch the live preview in a sandboxed iframe, then export with one click to WeChat / X / Zhihu / HTML / PNG.

Notes

• Stack: Next.js 16, React 19, Tailwind v4. Rendering uses SSE streaming, so you see output in real time.
• The preview runs in a sandboxed iframe plus dompurify for XSS defense.
• Apache-2.0 licensed, free to self-host.

I put this tool through a deeper test - running the same input through 12 different templates and embedding the results directly into the post. Read the full html-anything review to see what it does in practice.

Click the button above to view the full resource at source.