Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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use-device-pixel-ratio
A React hook that returns the device pixel ratio and reacts to changes across displays.
quickjs-rs
Sandboxed JavaScript and TypeScript execution for Python, running QuickJS inside a WebAssembly sandbox.
@tinyhttp/logger
Minimal and flexible HTTP request logger middleware for tinyhttp and Node.js.
node-client-sdk
LaunchDarkly's client-side feature-flag SDK for single-user Node.js apps, now superseded by the scoped @launchdarkly/node-client-sdk package.
cssinjs-utils
Typed CSS-in-JS helper utilities that power Ant Design's style-generation, token-calculation, and CSS-variable pipeline.
@datadog/native-metrics
A native Node.js addon that collects CPU, V8 heap, garbage-collection, and event-loop metrics directly from libuv and V8 internals.
estree-util-is-identifier-name
A tiny estree utility that checks whether a string or code point can be a valid ECMAScript identifier name.
@posthog/brand
PostHog's official brand assets — logo, colors, RoundHog font, and hedgehog illustrations as React components
bumparaw-collections
Bumpalo-backed Rust collections built on serde_json RawValue for minimal, gradual JSON parsing.
React Data Grid (Grafana Fork)
A virtualized, keyboard-accessible React data grid with sorting, inline editing, row grouping, and frozen columns.
react-split-pane
A resizable, nestable split-pane React component for building draggable panel layouts.
Repomix
Packs an entire repository into a single AI-friendly file, complete with token counts, secret scanning, and an MCP server for direct AI assistant access.
Material Components for Web
Modular and customizable Material Design UI components for the web.
tinacms
Git-backed headless CMS that gives React apps live, in-context Markdown editing and a generated GraphQL content API.
selectize.js
A jQuery-based custom select UI control with autocomplete, tagging, and keyboard-driven multi-select for forms.
Agent-Native
A full-stack TypeScript framework where AI agents and UI share the same actions, database, and context.
Sanity
Sanity Studio is the open-source, config-driven React framework you customize and deploy as the editing UI for Sanity's real-time content backend.
gluestack-ui
A CLI that adds accessible, Tailwind-styled universal components straight into React & React Native codebases
Semiotic
A React data-visualization library for network graphs, streaming data, and coordinated dashboards, built for AI-assisted development.
Skybridge
The full-stack TypeScript framework for building type-safe MCP Apps and ChatGPT Apps.
fate
A Relay-inspired data client for React with normalized caching, view composition, and type-safe fetching.
performative-ui
A tongue-in-cheek React component library for building AI-startup landing pages
rc-trigger
Low-level React popup trigger and alignment primitive
