Run 50 marketing skills inside Claude Code, Cursor, or Codex for SEO, copywriting, CRO, analytics, and growth engineering. MIT licensed.
Build HTML email templates with a drag-and-drop editor, 78 preset blocks, and clean HTML or JSON export. Self-hosted, AGPL-3.0, no account required.
About card
card is an open source tool in Marketing & SEO. Use it as a free, self-hostable alternative to Stripo, Beefree, Unlayer and Topol.io.
Build HTML email templates with a drag-and-drop editor, 78 preset blocks, and clean HTML or JSON export. Self-hosted, AGPL-3.0, no account required.
Licensed under AGPL-3.0 with 431 stars on GitHub.
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