Convert markdown to email-safe HTML with linting and live preview via an MCP server or local CLI.
Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
We ran the install command below but it didn't respond within our test window — this can mean a slow first-time install rather than a real problem.
npx -y emailmdNo response to initialize.
This is an experimental automated check and can have false negatives — missing environment variables, a slow cold install, etc. It doesn’t necessarily mean something’s wrong. Last checked 1mo ago.
💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
Inspect callable tools, capabilities, and parameters exposed to AI agents by Emailmd.
emailmd converts markdown into responsive, email-safe HTML that works across Gmail, Outlook, Apple Mail, Yahoo, and every other client.

v0.3.0 migration:
render()is now async. Update calls fromrender(md)toawait render(md). Requires Node 20+ (MJML 5).
Bar charts, progress meters, sparklines, KPI tiles, step trackers, and star ratings, each written as a plain markdown list:

They are drawn from table cells and text glyphs rather than images or SVG, so they still render when the client blocks remote images, and they redraw themselves in the plain-text part instead of collapsing to a list of numbers. See the directives reference.
emailmd also ships with a command-line interface.
Run emailmd --help for all options.
@emailmd/react provides a live-preview hook (useEmailmd), an <EmailPreview /> iframe component, and <EmailmdBuilder /> — the full builder as a drop-in component for your own app.
emailmd ships a Model Context Protocol server, so an AI assistant can render, lint, and preview emails for you. It exposes three tools — render (markdown to email-safe HTML), lint (flag deliverability problems without rendering), and read_docs (look up emailmd syntax) — over either transport:
Published to the official MCP registry as dev.emailmd/emailmd. See the MCP docs for per-client setup.
Prefer plain context over tools? emailmd is just markdown, so AI is great at writing templates. Feed the full docs to your AI tool:
Contributions are welcome! Feel free to open an issue or submit a pull request.
emailmd is under active development. The API may change between minor versions until we hit 1.0 — breaking changes are always called out in the changelog. See Stability & Versioning for what the semver contract covers.
MIT
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