Run 50 marketing skills inside Claude Code, Cursor, or Codex for SEO, copywriting, CRO, analytics, and growth engineering. MIT licensed.
Manage transactional email, campaigns, and workflow automation from one contact list, at $0.001 per email with no contact limits.
About Plunk
Plunk is an open source tool in Marketing & SEO. Use it as a free, self-hostable alternative to SendGrid, Resend, Mailchimp, Mailgun and Brevo.
Manage transactional email, campaigns, and workflow automation from one contact list, at $0.001 per email with no contact limits.
Licensed under AGPL-3.0 with 5,500 stars on GitHub.
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