MJML
Markup language for responsive email design
Pricing
Free tier
Flat rate
Adoption
↗RisingLicense
Open Source
Data freshness
Verified · Jul 16, 2026Overview
What is MJML?
MJML is a markup language designed to simplify the creation of responsive emails. It abstracts away the complexities of HTML and CSS, making it easier for developers and designers to create consistent and visually appealing email templates.
Key differentiator
“MJML offers a streamlined and efficient way to create responsive emails by abstracting away the complexities of HTML and CSS, making it easier for developers and designers to focus on content rather than technical details.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
MJML requires manual setup and integration with ESPs, lacking native support for many common platforms
Rendering large or nested MJML structures can lead to slower email generation times compared to raw HTML/CSS
Limited third-party contributions, fewer plugins, and a smaller user base for support and collaboration
Fit analysis
Who is it for?
✓ Best for
Developers who need to create visually appealing and responsive email campaigns quickly
Teams that require a standardized approach to email design across multiple projects
✕ Not a fit for
Projects requiring highly customized, non-responsive email designs
Users looking for a cloud-based solution with managed services
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Works well with
Next step
Get Started with MJML
Step-by-step setup guide with code examples and common gotchas.