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

💯 Curated coding interview preparation materials for busy software engineers

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.

VS Code in the browser

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

🐻 Bear necessities for state management in React

Dify is an open-source LLM app development platform. Dify's intuitive interface combines AI workflow, RAG pipeline, agent capabilities, model management, observability features and more, letting yo…

🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.

React Hooks — 👍

🤯 Lobe Chat - an open-source, modern-design AI chat framework. Supports Multi AI Providers( OpenAI / Claude 3 / Gemini / Ollama / Azure / DeepSeek), Knowledge Base (file upload / knowledge manageme…

📋 React Hooks for form state management and validation (Web + React Native)

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable an…

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

Drag & drop UI to build your customized LLM flow

✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML, CSV and more, into interactive graphs.

Fast, disk space efficient package manager

Backstage is an open framework for building developer portals

A React Framework for building internal tools, admin panels, dashboards & B2B apps with unmatched flexibility.

A fully featured React components library

A frontend Framework for single-page applications on top of REST/GraphQL APIs, using TypeScript, React and Material Design

React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely cust…

IDE-style autocomplete for your existing terminal & shell

Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for buildi…

Free and Open source Web Builder Framework. Next generation tool for building templates without coding

User-friendly Desktop Client App for AI Models/LLMs (GPT, Claude, Gemini, Ollama...)

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open sour…

Enhanced ChatGPT Clone: Features Anthropic, AWS, OpenAI, Assistants API, Azure, Groq, o1, GPT-4o, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, langchain, D…

Home of the Renovate CLI: Cross-platform Dependency Automation by Mend.io

FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, le…