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2.9.3

Fomantic-UI The official community fork of Semantic-UI

Get Started New in 2.9

Design Beautiful Websites Quickly

Fomantic is a development framework that helps create beautiful, responsive layouts using human-friendly HTML.

Concise HTML

Fomantic UI treats words and classes as exchangeable concepts.

Classes use syntax from natural languages like noun/modifier relationships, word order, and plurality to link concepts intuitively.

Get the same benefits as BEM or SMACSS, but without the tedium.

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Intuitive Javascript

Fomantic uses simple phrases called behaviors that trigger functionality.

Any arbitrary decision in a component is included as a setting that developers can modify.

Simplified Debugging

Performance logging lets you track down bottlenecks without digging through stack traces.

Don't have access to development tools right now? Check out this short clip.

Unbelievable Theming

Fomantic comes equipped with an intuitive inheritance system and high level theming variables that let you have complete design freedom.

Develop your UI once, then deploy with the same code everywhere.

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Variable File

Override File

5000+ Theming Variables
600+ Switches to reduce CSS size

The only dogma from this framework: everything arbitrary is mutable.

Theming Guide

60+ UI Components
250+ Variations

Build your entire site with one UI stack. Share your UI between multiple projects.

Browse UI

8000+ Commits

Fomantic UI and Semantic UI are free open source projects already used in multiple large scale production environments.

Visit GitHub

Unbelievable Breadth

Definitions aren't limited to just buttons on a page. Fomantic's components allow several distinct types of definitions: elements, collections, views, modules and behaviors which cover the gamut of interface design.

See Layout Examples

Divider

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Accordion

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Responsively Designed

Fomantic is designed completely with em making responsive sizing a breeze. Design variations built into elements allow you to make the choice how content adjusts for tablet and mobile.

Responsive Examples

Partners with Libraries You Love

Fomantic has integrations with React, Angular, Meteor, Ember and many other frameworks to help organize your UI layer alongside your application logic.

See Integrations

Liberate your Development

Enterprise Ready

Build tools, performance logging, support for custom definitions, multiple-levels of theme inheritance—a developer's dream.

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