Markdown was supposed to be the great equalizer — write once, render anywhere. In practice, it became the default not because it's the best format, but because it's easy to write. Writers like it. Engineers like it. But when that Markdown gets rendered in a browser, pasted into WeChat, or screenshotted for Twitter — it looks like what it is: a text file with some punctuation.
The Anthropic Claude Code team made the switch: internal docs -> HTML. Their argument: **Markdown is good for the writer. HTML is good for the reader.** Layout belongs to the output, not the source.
HTML Anything is an agentic HTML editor — 75 skill templates across 9 deliverable surfaces, driven by your local AI coding agent:
Pick a template, feed it Markdown/CSV/JSON/SQL/raw notes, watch your agent write the HTML, ship it.
1. **Pick a template** — 75 skills searchable and filterable by mode x scenario
2. **Feed it content** — Markdown, CSV, Excel, JSON, SQL, or plain text
3. **Streaming SSE preview** — watch the page render in real time as the agent types
4. **One-click export** — WeChat (juice-inlined CSS pastes clean), X/Zhihu (PNG clipboard), .html, .png
The key insight: `Markdown is the draft. HTML is what humans read.` Your agent bridges the gap.
HTML Anything reuses your existing CLI session auth — `claude login`, `cursor login`, `gemini auth`. Your subscription does the work. Marginal cost: **$0**.
Works with 8 coding agents auto-detected on PATH: Claude Code, Cursor Agent, Codex, Gemini CLI, GitHub Copilot CLI, OpenCode, Qwen Coder, Aider.
From the team behind [nexu-io/open-design](https://github.com/nexu-io/open-design) — 40k stars, 200+ contributors, production-grade and iterating fast. Same philosophy, focused execution: the agent writes the HTML, you ship the designed artifact.
The old workflow: write Markdown -> render to HTML -> screenshot -> manually format for each platform.
The new workflow: write Markdown -> agent converts to designed HTML -> one-click export to WeChat/X/Zhihu/PNG.
A newsprint poster, a Swiss International deck, a warm-parchment editorial doc. These are artifacts you'd normally hire a designer to produce. HTML Anything makes them a conversation with your agent.