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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

209,966TypeScript
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#2langchain-ai/langchain

🦜🔗 The platform for reliable agents.

127,110Python
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#3fastapi/fastapi

FastAPI framework, high performance, easy to learn, fast to code, ready for production

95,415Python
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#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.

88,140Go
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#5django/django

The Web framework for perfectionists with deadlines.

86,906Python
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#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.

83,780Blade
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#7spring-projects/spring-boot

Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

80,063Java
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#8nestjs/nest

A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀

74,705TypeScript
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#9ocornut/imgui

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

71,476C++
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#10scrapy/scrapy

Scrapy, a fast high-level web crawling & scraping framework for Python.

59,834Python
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#11nuxt/nuxt

The Full-Stack Vue Framework.

59,671TypeScript
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#12spring-projects/spring-framework

Spring Framework

59,636Java
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#13rails/rails

Ruby on Rails

58,303Ruby
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#14microsoft/autogen

A programming framework for agentic AI

54,690Python
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#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.

52,368TypeScript
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#16expo/expo

An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.

47,411TypeScript
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#17run-llama/llama_index

LlamaIndex is the leading document agent and OCR platform

47,100Python
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#18meteor/meteor

Meteor, the JavaScript App Platform

44,782JavaScript
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#19apache/dubbo

The java implementation of Apache Dubbo. An RPC and microservice framework.

41,738Java
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#20charmbracelet/bubbletea

A powerful little TUI framework 🏗

39,719Go
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#21gofiber/fiber

⚡️ Express inspired web framework written in Go

39,248Go
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#22Dogfalo/materialize

Materialize, a CSS Framework based on Material Design

39,163JavaScript
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#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.

38,947Python
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#24laravel/framework

Laravel is a web application framework with expressive, elegant syntax.

34,521PHP
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#25Textualize/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.

34,388Python
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#26google-ai-edge/mediapipe

Cross-platform, customizable ML solutions for live and streaming media.

33,837C++
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#27zeromicro/go-zero

A cloud-native Go microservices framework with cli tool for productivity.

32,680Go
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#28medusajs/medusa

The world's most flexible commerce platform.

32,107TypeScript
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#29ianstormtaylor/slate

A completely customizable framework for building rich text editors. (Currently in beta.)

31,541TypeScript
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#30symfony/symfony

The Symfony PHP framework

30,953PHP
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#31postcss/postcss

Transforming styles with JS plugins

28,960TypeScript
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#32python-telegram-bot/python-telegram-bot

We have made you a wrapper you can't refuse

28,821Python
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#33reflex-dev/reflex

🕸️ Web apps in pure Python 🐍

28,143Python
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#34squidfunk/mkdocs-material

Documentation that simply works

26,091Python
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#35vapor/vapor

💧 A server-side Swift HTTP web framework.

25,977Swift
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#36akveo/ngx-admin

Customizable admin dashboard template based on Angular 10+

25,929TypeScript
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#37rwf2/Rocket

A web framework for Rust.

25,674Rust
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#38GrapesJS/grapesjs

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

25,521TypeScript
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#39go-kratos/kratos

Your ultimate Go microservices framework for the cloud-native era.

25,462Go
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#40gocolly/colly

Elegant Scraper and Crawler Framework for Golang

25,102Go
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#41langchain-ai/langgraph

Build resilient language agents as graphs.

24,913Python
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#42libgdx/libgdx

Desktop/Android/HTML5/iOS Java game development framework

24,813Java
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#43mdbootstrap/mdb-ui-kit

Bootstrap 5 & Material Design UI KIT

24,289SCSS
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#44wechaty/wechaty

Conversational RPA SDK for Chatbot Makers. Join our Discord: https://discord.gg/7q8NBZbQzt

22,488TypeScript
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#45QwikDev/qwik

Instant-loading web apps, without effort

21,930TypeScript
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#46jina-ai/serve

☁️ Build multimodal AI applications with cloud-native stack

21,830Python
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#47catchorg/Catch2

A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)

20,199C++
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#48jorgebucaran/hyperapp

1kB-ish JavaScript framework for building hypertext applications

19,217JavaScript
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#49openai/openai-agents-python

A lightweight, powerful framework for multi-agent workflows

19,059Python
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#50eggjs/egg

🥚🥚🥚🥚 Born to build better enterprise frameworks and apps with Node.js & Koa. https://307.run/eggcode

19,005TypeScript
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