Angular Material vs U.S. Web Design System

Angular Material is a free library of Material Design UI components for Angular applications. Add it with the Angular CLI command `ng add @angular/material`, then choose a prebuilt theme or configure a custom theme. Setup can add global typography styles, the Roboto font, and Material Symbols. Schematics generate prebuilt pieces such as navigation, tables, and address forms. The Angular CDK supplies tools for authoring custom components around common interaction patterns. The Angular Components team describes the components as accessible and internationalized, with listed screen-reader combinations spanning Windows, macOS, iOS, Android, and Chrome OS. Supported browsers are the most recent two versions of Chrome, Firefox, Safari, and Edge. Angular Material and the CDK follow Angular’s release and support policy. The project focuses on UI components, not application layout. Shadow DOM is not officially supported, although the team aims to keep components working there. The plan is free, with an MIT license.

U.S. Web Design System (USWDS) is an open-source toolkit for government teams creating accessible, mobile-friendly websites. It combines principles, guidance, and code with components that include user-experience, accessibility, and implementation guidance. Teams get patterns, design tokens, utilities, and page templates, then install and compile the system to customize projects. Node and npm are the recommended setup, and USWDS can be added as an npm dependency. Downloadable design kits support Figma and Sketch. USWDS says its guidance and code address Section 508 and 21st Century IDEA requirements from the outset. Version 3.0 supports Chrome, Firefox, Safari, and Edge, but not Internet Explorer 11. Security practices include Snyk dependency checks, CodeQL analysis, release vulnerability reports, and patches for 1.x and 2.x branches. It is free to download and self-host.