EasyMJML Builder is a Mautic plugin that adds a modern, MJML-based email builder alongside GrapeJS, no migration needed, all existing templates work out of the box. Built on the Easy Email open source project, it delivers drag-and-drop editing, a real-time layer tree, and cleaner HTML output with no unnecessary CSS classes.
EasyMJML Builder
Recommended
Author
Sebastian Fahrenkrog
Mautic Senior Developer
Mautic compatibility
+5.0
Release date
February 2026
License
MIT License

Features
Alternative builder to GrapeJS
Gives Mautic users a completely different editing experience, ideal for teams that want a more structured, MJML-based workflow.
Zero-migration setup
Opens existing Mautic email templates as-is, with no changes or conversion needed to start using it.
Layer tree
Displays the full email block hierarchy in real time, making it easy to navigate and reorganize nested sections without clicking around the canvas.
Cleaner, more stable output
Unlike GrapeJS, it doesn't inject unnecessary CSS classes into the email's HTML, producing leaner, more predictable code that is easier to maintain.
Full block editability
Every element - text, image, button, spacer, divider - is fully editable directly in the canvas, with complete control over content and styling.
Mature open source foundation
Built on Easy Email, a well-adopted MIT-licensed project with strong community support and proven stability.