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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@posthog/brand
PostHog's official brand assets — logo, colors, RoundHog font, and hedgehog illustrations as React components
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.
turbovec
A Rust vector index with Python bindings that compresses embeddings to 2-4 bits and searches faster than FAISS.
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.
Plain
A Django-inspired Python web framework rebuilt from scratch for explicit, typed, agent-friendly application code.
performative-ui
A tongue-in-cheek React component library for building AI-startup landing pages
Levenshtein
A fast Python C extension for Levenshtein edit distance, string similarity, and edit operations.
rc-trigger
Low-level React popup trigger and alignment primitive
