Base UI is a library of headless React components and low-level hooks for building accessible, customizable user interfaces.

A robust base64 encoder/decoder that is fully compatible with atob() and btoa(), written in JavaScript.

Common TypeScript types used within Backstage for JSON handling and reactive programming patterns

Shields.io badge library for generating customizable SVG badges with configurable labels, messages, colors, styles, and logos.

A frontend library that helps other Backstage plugins interact with the catalog through React components, hooks, and utilities.

Testing utilities for Backstage plugins and applications with mock APIs, app wrappers, and test helpers.

Node.js utilities and types for building Backstage catalog modules, providing core APIs for catalog processors, entity providers, and processing workflows

Authentication backend plugin for Backstage - handles OAuth flows and authentication with various providers including Google, GitHub, GitLab, Microsoft, Okta, Auth0, SAML and more

Common utilities for error handling within Backstage with structured error classes and serialization functions

Development utilities for creating and testing Backstage plugins with React components and dev app framework

Core API used by Backstage plugins for analytics, configuration, routing, and cross-plugin communication

Compatibility layer for migrating from Backstage's legacy frontend system to the new frontend system

Core API library that provides essential application programming interfaces for Backstage apps, including routing functionality, app configuration management, and core services that enable frontend applications to interact with the Backstage ecosystem.

Config API used by Backstage core, backend, and CLI

Types and validation framework for Backstage's software catalog model with support for all entity kinds, relationships, and validation policies

Backend defaults used by Backstage backend apps providing comprehensive service factories and implementations

The Backbone Framework - A composite application library for Backbone.js that simplifies the construction of large-scale JavaScript applications

Babylon.js GUI module for creating graphical user interfaces in web-based 3D applications

Babylon.js loaders module providing support for importing various 3D file formats including glTF, BVH, OBJ, STL, and SPLAT into Babylon.js 3D scenes

A JavaScript parser used in Babel for parsing ECMAScript code with support for JSX, Flow, and experimental language features