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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Express
The fast, unopinionated, minimalist web framework for Node.js
Electron
Build cross-platform desktop apps with JavaScript, HTML, and CSS on Chromium and Node.js
Hono
A small, ultrafast web framework built on Web Standards that runs identically everywhere.
NestJS
A progressive Node.js framework for building efficient, scalable, and maintainable server-side applications in TypeScript.
Echo
A minimalist, high-performance Go web framework with a radix-tree router, built-in middleware chain, and first-class HTTP/2 support.
napi-rs
Build precompiled Node.js add-ons in Rust via Node-API, no node-gyp required
Chat SDK
A unified TypeScript SDK for building chat bots and AI agents across every major messaging platform
Mastra Core
The TypeScript framework for building AI agents, workflows, and RAG apps with unified access to 40+ LLM providers.
grammY
The modern TypeScript framework for building Telegram bots on Node.js and Deno
Fiber
An Express-inspired Go web framework built on Fasthttp for zero-allocation, extreme-performance HTTP servers.
graphql-yoga
A fully-featured, spec-compliant GraphQL server built on the WHATWG Fetch API, running anywhere from Node to Cloudflare Workers.
botbuilder-js
The Node.js/TypeScript SDK for Microsoft Bot Framework — adapters, middleware, and channel integrations for building conversational bots.
CopilotKit
React hooks and providers for building AI copilots with shared state, generative UI, and human-in-the-loop workflows.
hapi
A config-driven Node.js framework for building HTTP APIs and web servers with built-in validation, caching, and auth.
InversifyJS
A lightweight, decorator-driven IoC container that brings SOLID-friendly dependency injection to TypeScript and JavaScript apps.
Payload
The Next.js-native, TypeScript CMS and application framework with instant REST, GraphQL, and Local APIs.
Medusa
Open-source headless commerce platform and framework for Node.js and TypeScript.
Primer CSS
GitHub's official Sass design system framework, providing utility classes and component styles for building GitHub-style interfaces.
Probot
A batteries-included Node.js framework for building and running GitHub Apps that react to repository and organization webhook events.
tinyhttp
A tiny, ESM-only web framework that's an Express-compatible drop-in, with precompiled routing and a fraction of the dependencies.
@tryghost/api-framework
A composable request pipeline that runs Ghost's API controllers through validation, serialization, permissions, and query stages.
