nexu-io/html-anything

Project overview

A local-first, agentic HTML editor that reuses installed coding-agent CLIs to turn text or data input into designed, ship-ready single-file HTML. It runs on your machine, requires no additional API keys, and exports to social platforms.

Project type

AI Agent

Use cases

Documents & Office · Coding & Development

Deployment

Refer to project documentation

License

Apache-2.0

Best for

• Creators and developers who already have a coding-agent CLI installed locally and want to generate designed HTML content without manual CSS work.

Key capabilities

• Scans the user's PATH on startup to auto-detect installed coding-agent CLIs and reuses their existing logged-in sessions.
• Provides 75 composable skill templates across 9 deliverable surfaces, such as magazine articles, keynote decks, posters, web prototypes, and data reports, to define output format and design system.
• Streams the agent's stdout JSON-line output via Server-Sent Events to a live iframe preview, allowing users to watch the HTML render line by line and interrupt mid-generation.
• Runs user-emitted HTML in an isolated sandboxed iframe with allow-scripts and allow-same-origin, quarantining cookies and localStorage from the host while supporting Tailwind CDN and Google Fonts.
• Accepts Markdown, CSV, TSV, JSON, SQL, and plain text inputs, parsing tabular data in the browser without uploading anything.
• Provides one-click export using CSS inlining and high-DPI screenshots to WeChat, X, Zhihu, and standalone HTML or PNG files.
• Generates four candidates from the same brief and picks the best one.

Limitations and risks

• The application does not render video directly; Hyperframes frame scripts require a separate handoff to Remotion to render an mp4 file.
• The local API surface uses maximally permissive flags to spawn coding-agent CLIs. Users must implement Host-header allowlists to prevent DNS-rebinding attacks.

Getting started

• The documented quickstart requires 4 commands: clone the repository, run pnpm install, execute pnpm -F @html-anything/next dev, and open http://localhost:3000. The setup difficulty is documented as easy with a stated time of 30 seconds.

Evidence and sources

• GitHub project description: The agentic HTML editor — your local AI agent writes the HTML, you ship it.
• README: Local-first, zero API key, reuses the CLI session you already have logged in — **9 coding-agent CLIs** auto-detected on your `PATH`
• README: "writing HTML" used to mean writing CSS, picking type scales, snapping to a grid, doing responsive — most users won't, designers won't bother, writers don't have the patience.
• README: - [ ] **Multi-template compare preview** — generate four candidates of the same brief, pick the best one
• README: | **Claude Code** | `claude` | `claude -p --output-format stream-json` | | **OpenAI Codex** | `codex` | `codex exec --json --sandbox workspace-write` |

Reviewed at: 2026-07-18T05:55:27Z