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Open-source Marketing & content projects

7 MIT-licensed marketing & content projects, most-starred first — free to use, modify and ship commercially. Each page covers what it is, who it suits, how to install and run it, and how it compares.

  1. 1UmamiPrivacy-first web analytics you can self-host or use in the cloud, without cookies.★ 39.9k
  2. 2MJMLA markup language that compiles simple email templates into responsive HTML that works across email clients.★ 18.3k
  3. 3Markdown BadgesA large collection of copy-paste markdown badges for GitHub profiles and project READMEs.★ 17.2k
  4. 4chinese-copywriting-guidelinesA style guide for spacing and punctuation in Chinese text mixed with English and numbers.★ 15.8k
  5. 5emoji-cheat-sheetA searchable markdown reference listing emoji and their shortcodes for use in GitHub text.★ 13.8k
  6. 6Responsive HTML Email TemplateA free, simple responsive HTML email template with a clear call-to-action button.★ 13.7k
  7. 7GEO-SEO Claude Code SkillA Claude Code skill that audits websites for visibility in AI search engines like ChatGPT and Perplexity.★ 11.4k