HTML Anything
The agentic HTML editor — Markdown is the draft, HTML is what humans read
An agent-era HTML editor from the team behind Open Design (40k stars). Turns any input (Markdown / CSV / Excel / JSON / SQL / raw notes) into ship-ready single-file HTML via your local AI agent. Auto-detects 9 coding-agent CLIs (Claude Code, Cursor Agent, Codex, Gemini CLI, GitHub Copilot CLI, OpenCode, Qwen Coder, Aider, IBM Bob), zero API key — reuses your existing logged-in session. 75 composable skill templates across 9 deliverable surfaces (magazine articles, keynote decks, resumes, posters, Xiaohongshu cards, tweet cards, web prototypes, data reports, Hyperframes videos). One-click export to WeChat / X / Zhihu, or download .html / .png. SSE streaming render, sandboxed iframe preview, format auto-detect.
Key Features
- Auto-detects 9 coding-agent CLIs on PATH — Claude Code, Cursor Agent, Codex, Gemini, Copilot, OpenCode, Qwen, Aider, IBM Bob
- Zero API key — reuses the session you already have logged in via claude login / cursor login / gemini auth
- 75 composable skill templates across prototype, deck, frame, social, office, doc, mockup, vfx modes
- 9 deliverable surfaces — magazine articles, keynote decks, resumes, posters, Xiaohongshu cards, tweet cards, web prototypes, data reports, Hyperframes videos
- One-click export — WeChat (juice-inlined CSS), X/Weibo/Xiaohongshu (2x PNG to clipboard), Zhihu (LaTeX image placeholders), download .html / .png
- SSE streaming render — watch the AI draw the HTML line by line, interrupt at any time
- Sandboxed iframe preview — user HTML runs in isolated origin, cookies and localStorage quarantined
- Format auto-detect — accepts Markdown, CSV, TSV, JSON, SQL, plain text; parses Excel in browser
- Hard constraints in every SKILL.md — CJK-first font stack, 8px baseline grid, contrast >= 4.5, must-use-real-data rule
- Skills are folders following Claude Code SKILL.md convention — drop a folder in, restart, picker shows it
- Deployable to local or Vercel — the agent always stays on your laptop, web layer can be hosted
- Built on Next.js 16 + Turbopack, React 19, Tailwind v4, zustand state
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