Material Design Lite vs Primer: What are the differences?

What is Material Design Lite? Material Design Lite Components in HTML/CSS/JS. Material Design Lite (MDL) lets you add a Material Design look and feel to your static content websites. It doesn't rely on any JavaScript frameworks or libraries. Optimized for cross-device use, gracefully degrades in older browsers, and offers an experience that is accessible from the get-go.

What is Primer? CSS toolkit and guidelines that power GitHub. Primer is the basecoat of GitHub, made by nerds just like you who share a passion for HTML and CSS.

Material Design Lite and Primer can be primarily classified as "Front-End Frameworks" tools.

"Material Design straight from the original creators" is the primary reason why developers consider Material Design Lite over the competitors, whereas "simple" was stated as the key factor in picking Primer.

Material Design Lite and Primer are both open source tools. It seems that Material Design Lite with 31.3K GitHub stars and 5.32K forks on GitHub has more adoption than Primer with 8.42K GitHub stars and 621 GitHub forks.