When comparing Semantic UI vs Materialize, the Slant community recommends Semantic UI for most people. In the question“What is the best CSS framework?” Semantic UI is ranked 5th while Materialize is ranked 8th.
Ranked in these QuestionsQuestion Ranking
Pro The elements offer a huge amount of customization, far beyond a framework like bootstrap.
Pro It's semantic
Uses semantic class names for its styling, making it easier to grasp and understand even for beginners looking to jump right in.
Pro Load only the components you need
Pro Well documented
The documentation is easy to use, well written and has lots of examples each with their source codes.
Pro It'll have almost any UI component/element you may think of for your project
It includes tons of UI components that you may need for almost any type of project you may work on; And of course, you can always only pick what you need.
Pro Beautifully designed
Semantic UI has a futuristic and beautiful design. Many will satisfied with the design, especially when Semantic UI is used as a CSS framework.
Pro Easy to use
Pro Device agnostic
Since Materialize follows Google's guidelines for Material design, which in theory is device agnostic, Materialize itself is device agnostic too. It's designed to look good on every device.
Pro Large selection of components
CSS components: Badges, buttons, cards, collections, footer, forms, icons, navbar, pagination, preloader.
Mobile-specific: slide-out drawer menu, toasts.
Pro Nice showcase of sites built with Materialize
While the default style is not bad at all, Materialize also gives developers the ability to customize it and fit their own style, while still keeping in line with the Material Design philosophy.
Along with the CSS files, designers can also download the SASS files which can be edited and compiled.
Pro 12-Column Grid System
Pro Great-looking demo
Pro Mobile navigation
Pro Included icon font
Pro Meteor.js integration by developers
Material design is very opinionated on how design elements should behave and look. The basics of which revolve around certain visual elements (physics, space, momentum and light) which are used to create specific UX elements.
This is very helpful because it creates a consistent feel without making every design look the same. This can be seen in Materialize too, where each element may be customized but still it keeps the consistent look of the material design.
Con Very large file size
Packages are much bigger when comparing to Twitter Bootstrap or Zurb Foundation. Semantic UI is really extremely large and it would be better to use specific modules and components, rather than the whole thing.
Contains a lot of UI inaccuracies, like wrong positioning, cannot mix classes, etc.
Con Small number of classes
Once you wanna do something that is not mentioned in the doc - prepare to spend an hour, then give up and implement a custom "workaround".