Design systems and UI kits

Having a solid design system has plenty of benefits: making your UI consistent and familiar across different apps and websites of your company, helping different teams collaborate more effectively and reducing duplicate work, creating unified tone of voice when communicating with your customers across different channels  are just a few of these.

We've listed some of the design systems for you to explore and get inspired by, including their official UI kits:

Microsoft's Fluent Design System

Microsoft's Fluent design language system

The new open-source design system by Microsoft is truly cross-platform – not only for Windows, but also for web, iOS, macOS and Android:



Apple's Human Interface Guidelines

Apple's UI design resources

Comprehensive set of guidelines by Apple for iOS, MacOS, watchOS and tvOS:



Google's Material Design

Google's Material design system

Popular design system by Google inspired by the physical world and its textures backed by open-source



IBM's Design Language

IBM's Design Language

IBM's own Design Language (used to be called “living language”) is a shared vocabulary for design. Its open-source Carbon design system is used to build products and experiences within the company:



GOV.UK's Design System

GOV.UK Design system

UK government has its very own design system to ensure consistency of numerous services and avoid repeating work that’s already been done by other teams within the organisation:



U.S. Government's Web Design System

 U.S. Web Design System (USWDS)

American government made it easier to build accessible, mobile-friendly government websites for the American public with its design



Shopify's Polaris Design System


Design system is not only about UI though. Here's the video recording of the talk from TheUXConf by UX Manager at Shopify's Polaris Design System Hayley Hughes on Creating Unity, Not Uniformity with Design Language Systems” that shows how having design system can help collaboration.



Transport for London's Style Guide

Transport for London Style Guide

Part of the Digital Design Toolkit, Transport for London's style guide for defines the interactive visual language of its website and digital services for those preparing content, designing an interface or developing an entire



Uber's Base Web Design System

Uber's Base Web Design System

Uber's design system called Base is a common language between designers, developers, and PMs in their organisation, making it easier for them to work together and quickly. Their library is open-source and helps easily creating web applications not only inside Uber but also to be used by other



The City of Oslo's Visual Interface


With visual identity being a part of a bigger design system, it's not a simple task to design one for a city. In this talk at TheUXConf brand strategist John Aurtande from Norwegian experience agency Creuna shares design process & challenges building new identity for Oslo that helps its residents connect & thrive:



British Gas' Nucleus Design System

British Gas' Nucleus design system

Nucleus is an inclusive, community driven design system by British Gas enabling teams across the company to deliver consistent and accessible



Interested in learning how to start creating design system for your company  we cover design languages, style guide and toolkits on day 2 on UI Fundamentals of each of our monthly courses as well as a dedicated workshop on creating design language system.