Cerberus
Cerberus is a free, open-source email template collection built with HTML. Simple, but solid patterns for responsive HTML email templates and newsletters. It has 5,140 GitHub stars and is released under the MIT license. A live demo is linked from this page.
github.com/emailmonday/Cerberus (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
Get started
Copy the files into a new folder with degit (no git history), or clone the repository with git.
npx degit emailmonday/Cerberus my-emails
cd my-emailsgit clone --depth 1 https://github.com/emailmonday/Cerberus.git my-emailsSources: GitHub docs on template repositories, degit.
About Cerberus
Coding regular emails is hard enough by itself. Making them responsive and accessible shouldn’t add to the headache. A few simple, but solid patterns are all that’s needed to optimize emails for small screens and assistive technologies.
Built with
- HTML
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How do I use Cerberus?
Copy the files into a new folder with npx degit emailmonday/Cerberus my-emails (no git history), or fork the repository on GitHub. Then follow the README for the install and dev commands.
Can I use Cerberus for commercial projects?
Yes. Cerberus is released under the MIT license, a permissive license that allows commercial use as long as you keep the copyright and license notice. Third-party assets bundled with it (images, fonts, icons) may have their own terms.
Is Cerberus maintained?
The repository's most recent commit was on Sep 14, 2026. Its latest release is 3.4.1. appsgit only lists templates from repositories with a commit in the last six months.