freeCodeCamp.org's open-source codebase and curriculum. Learn to code for free.

Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Open source API development ecosystem - https://hoppscotch.io (open-source alternative to Postman, Insomnia)

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many mo…

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

🔥 🔥 🔥 Open Source Airtable Alternative

The repository for high quality TypeScript type definitions.

Your backend, minus the hassle.

Chakra UI is a component system for building products with speed ⚡️

Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

Drag & drop UI to build your customized LLM flow

Making Docker and Kubernetes management easy.

Blazing fast, instant realtime GraphQL APIs on your DB with fine grained access control, also trigger webhooks on database events.

Backstage is an open framework for building developer portals

The best way to start a full-stack, typesafe Next.js app

⚡ Empowering JavaScript with native platform APIs. ✨ Best of all worlds (TypeScript, Swift, Objective C, Kotlin, Java, Dart). Use what you love ❤️ Angular, Capacitor, Ionic, React, Solid, Svelte, V…

📘 OpenAPI/Swagger-generated API Reference Documentation

The web's most popular Jamstack front-end template (boilerplate) for building web applications with React

🚀 Beautiful, fast and modern React UI library.

Bootstrap components built with React

A React-based UI toolkit for the web

Mobile-first, accessible components for React Native & Web to build consistent UI across Android, iOS and Web.

Your window into the Elastic Stack

Collection of comprehensive TypeScript libraries for Interaction with the Ethereum JSON RPC API and utility functions.

Industry standard API mocking for JavaScript.

🔥🔥🔥 The Only Production-Ready AI-Powered Backend Code Generation

🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives.

🔮 Graphile's Crystal Monorepo; home to Grafast, PostGraphile, pg-introspection, pg-sql2 and much more!