Best Open Source framework Libraries
A curated list of the most popular GitHub repositories tagged with framework. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1vuejs/vue
This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core
#2langchain-ai/langchain
The agent engineering platform
#3fastapi/fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production
#4gin-gonic/gin
Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for building REST APIs, web applications, and microservices.
#5django/django
The Web framework for perfectionists with deadlines.
#6laravel/laravel
Laravel is a web application framework with expressive, elegant syntax. We’ve already laid the foundation for your next big idea — freeing you to create without sweating the small things.
#7spring-projects/spring-boot
Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.
#8nestjs/nest
A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀
#9ocornut/imgui
Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
#10scrapy/scrapy
Scrapy, a fast high-level web crawling & scraping framework for Python.
#11nuxt/nuxt
The Full-Stack Vue Framework.
#12spring-projects/spring-framework
Spring Framework
#13rails/rails
Ruby on Rails
#14microsoft/autogen
A programming framework for agentic AI
#15ionic-team/ionic-framework
A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.
#16expo/expo
An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.
#17run-llama/llama_index
LlamaIndex is the leading document agent and OCR platform
#18meteor/meteor
Meteor, the JavaScript App Platform
#19apache/dubbo
The java implementation of Apache Dubbo. An RPC and microservice framework.
#20charmbracelet/bubbletea
A powerful little TUI framework 🏗
#21gofiber/fiber
⚡️ Express inspired web framework written in Go
#22Dogfalo/materialize
Materialize, a CSS Framework based on Material Design
#23QuivrHQ/quivr
Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: PGVector, Faiss. Any Files. Anyway you want.
#24Textualize/textual
The lean application framework for Python. Build sophisticated user interfaces with a simple Python API. Run your apps in the terminal and a web browser.
#25laravel/framework
Laravel is a web application framework with expressive, elegant syntax.
#26google-ai-edge/mediapipe
Cross-platform, customizable ML solutions for live and streaming media.
#27zeromicro/go-zero
A cloud-native Go microservices framework with cli tool for productivity.
#28medusajs/medusa
The world's most flexible commerce platform.
#29ianstormtaylor/slate
A completely customizable framework for building rich text editors. (Currently in beta.)
#30symfony/symfony
The Symfony PHP framework
#31postcss/postcss
Transforming styles with JS plugins
#32python-telegram-bot/python-telegram-bot
We have made you a wrapper you can't refuse
#33reflex-dev/reflex
🕸️ Web apps in pure Python 🐍
#34langchain-ai/langgraph
Build resilient language agents as graphs.
#35deepset-ai/haystack
Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.
#36squidfunk/mkdocs-material
Documentation that simply works
#37vapor/vapor
💧 A server-side Swift HTTP web framework.
#38akveo/ngx-admin
Customizable admin dashboard template based on Angular 10+
#39rwf2/Rocket
A web framework for Rust.
#40GrapesJS/grapesjs
Free and Open source Web Builder Framework. Next generation tool for building templates without coding
#41go-kratos/kratos
Your ultimate Go microservices framework for the cloud-native era.
#42gocolly/colly
Elegant Scraper and Crawler Framework for Golang
#43libgdx/libgdx
Desktop/Android/HTML5/iOS Java game development framework
#44jorgebucaran/hyperapp
1kB-ish JavaScript framework for building hypertext applications
#45eggjs/egg
🥚🥚🥚🥚 Born to build better enterprise frameworks and apps with Node.js & Koa. https://307.run/eggcode
#46adonisjs/core
AdonisJS is a TypeScript-first web framework for building web apps and API servers. It comes with support for testing, modern tooling, an ecosystem of official packages, and more.
#47humanlayer/12-factor-agents
What are the principles we can use to build LLM-powered software that is actually good enough to put in the hands of production customers?
#48alibaba/ice
🚀 ice.js: The Progressive App Framework Based On React（基于 React 的渐进式应用框架）
#49sanic-org/sanic
Accelerate your web app development | Build fast. Run fast.
#50framework7io/framework7
Full featured HTML framework for building iOS & Android apps