Open-source alternatives to Bolt

UI component library for the Liquid Design System of Merck KGaA, Darmstadt, Germany

A monorepo containing the packages for Esri's Calcite Design System

🖍️ Crayons - A UI Kit comprising of web components for building Freshworks Apps!

Web Component library for the Helix Design System

Fundamental white label web component features for your design system.

JSTOR's design system

Components for Lyne Design System

Material Web is a framework-agnostic library of reusable user interface components built on native browser standards. It provides a collection of interactive elements that follow official design system specifications, enabling the creation of consistent and accessible interfaces across diverse web applications. The library utilizes custom elements and shadow DOM to ensure style encapsulation and component logic isolation. By leveraging native browser APIs, it maintains design integrity and functional consistency across all major web browsers and varying screen sizes. The project supports ent

FAST is a web components framework and declarative UI library used to build adaptive user interfaces. It functions as a server-side rendering engine and design system implementation, enabling the creation of modular components based on web standards. The framework focuses on cross-framework component compatibility, allowing user interface elements to remain functional across different front-end frameworks and modern browsers. It implements a design language through a collection of pre-defined visual components to ensure consistency across professional applications. The system covers state-dr

Fluent UI is a design system framework and TypeScript UI toolkit providing a comprehensive set of styles and accessibility guidelines. It functions as a React UI component library and a web component library, offering a collection of pre-styled elements and layout utilities to create a cohesive visual experience across web platforms. The project translates a brand design language into a functional library of reusable components, ensuring cross-product visual consistency. It enables the implementation of design systems for enterprise web applications through the use of standardized visual and

Momentum UI is a collection of UI libraries for implementing Momentum Design into web applications and websites.

The Design System and UI Agent Harness for AI/ML Factories, Robotics, and Autonomous Vehicles

PatternFly Elements. A set of community-created web components based on PatternFly design.

Tooling infrastructure for modern web component development.

A set of React UI components that supports Pinterest’s design language

Red Hat's Design System

Astro UXDS is a collection of guidelines, patterns and components for designing space-based user interface applications.

UI5 Web Components - the enterprise-flavored sugar on top of native APIs! Build SAP Fiori user interfaces with the technology of your choice.

Works with all frameworks 🧩 - Works with CDNs 🚛 - Fully customizable with CSS 🎨 - Includes an official dark theme 🌛 - Built with accessibility in mind ♿️ - Open source 😸

Siemens Industrial Experience is a design system for designers and developers, to consistently create the perfect digital experience for industrial software products.

DEPRECATED: Atomic UI Framework based on Web Components and Runtime CSS Generation for rapidly building interfaces that follow your Design System 🌈DE

A set of encapsulated Web components consuming the GOV.UK Design System.

Framework agnostic Web Component library that implements the Tyler Forge™ design system.

A set of high-quality standards based web components for enterprise web applications. Part of Vaadin 20+

Clarity is a scalable, accessible, customizable, open-source design system built with web components. Works with any JavaScript framework, created for enterprises, and designed to be inclusive.