Anypost

Email.md is an open-source tool from Anypost that converts Markdown into responsive, email-safe HTML built on MJML. It adds layout directives, image-free charts, theming with dark mode, buttons and deliverability/accessibility linting. It ships as a CLI, a React builder and an MCP server.

Key features

• Markdown to email-safe HTML
• Layout directives (heroes, columns)
• Image-free charts and KPI tiles
• Theming and dark mode
• Deliverability and accessibility linting
• CLI and React builder

Pricing

Email.md is free to use. Prices checked on the official pricing page in October 2026 and may change.

Who it's for

Email.md is used by developers and marketers. It integrates with MJML and React.