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Best Open Source reactjs Libraries

A curated list of the most popular GitHub repositories tagged with reactjs. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1pmndrs/zustand

🐻 Bear necessities for state management in React

57,077TypeScript
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#2react-hook-form/react-hook-form

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

44,545TypeScript
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#3sudheerj/reactjs-interview-questions

List of top 500 ReactJS Interview Questions & Answers....Coding exercise questions are coming soon!!

44,272JavaScript
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#4chakra-ui/chakra-ui

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

40,320TypeScript
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#5twentyhq/twenty

Building a modern alternative to Salesforce, powered by the community.

39,943TypeScript
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#6novuhq/novu

The open-source notification Inbox infrastructure. E-mail, SMS, Push and Slack Integrations.

38,597TypeScript
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#7ToolJet/ToolJet

ToolJet is the open-source foundation of ToolJet AI - the AI-native platform for building internal tools, dashboard, business applications, workflows and AI agents 🚀

37,455JavaScript
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#8NervJS/taro

匀攟匏跚端跚框架解决方案支持䜿甚 React/Vue 等框架来匀发埮信/京䞜/癟床/支付宝/字节跳劚/ QQ 小皋序/H5/React Native 等应甚。 https://taro.zone/

37,305TypeScript
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#9DavidHDev/react-bits

An open source collection of animated, interactive & fully customizable React components for building memorable websites.

35,986JavaScript
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#10conductor-oss/conductor

Conductor is an event driven agentic orchestration platform providing durable and highly resilient execution engine for applications and AI Agents

31,494Java
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#11CopilotKit/CopilotKit

The Frontend for Agents & Generative UI. React + Angular

28,900TypeScript
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#12heroui-inc/heroui

🚀 Beautiful, fast and modern React UI library. (Previously NextUI)

28,195TypeScript
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#13TanStack/table

🀖 Headless UI for building powerful tables & datagrids for TS/JS - React-Table, Vue-Table, Solid-Table, Svelte-Table

27,727TypeScript
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#14Asabeneh/30-Days-Of-React

30 Days of React challenge is a step by step guide to learn React in 30 days. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw

27,347JavaScript
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#15marmelab/react-admin

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

26,541TypeScript
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#16SigNoz/signoz

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 source Application Performance Monitoring (APM) & Observability tool

25,825TypeScript
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#17Redocly/redoc

📘 OpenAPI/Swagger-generated API Reference Documentation

25,507TypeScript
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#18mastra-ai/mastra

From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.

21,267TypeScript
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#19paularmstrong/normalizr

Normalizes nested JSON according to a schema

20,880JavaScript
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#20testing-library/react-testing-library

🐐 Simple and complete React DOM testing utilities that encourage good testing practices.

19,539JavaScript
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#21emotion-js/emotion

👩‍🎀 CSS-in-JS library designed for high performance style composition

18,002JavaScript
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#22vasanthk/react-bits

✹ React patterns, techniques, tips and tricks ✹

17,427
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#23jaywcjlove/reference

䞺匀发人员分享快速参考倇忘枅单(速查衚)

14,974Dockerfile
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#24blitz-js/blitz

⚡ The Missing Fullstack Toolkit for Next.js

14,131TypeScript
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#25smartcontractkit/full-blockchain-solidity-course-js

Learn Blockchain, Solidity, and Full Stack Web3 Development with Javascript

13,974
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#26streetwriters/notesnook

A fully open source & end-to-end encrypted note taking alternative to Evernote.

13,705TypeScript
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#27fkhadra/react-toastify

React notification made easy 🚀 !

13,429TypeScript
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#28PlasmoHQ/plasmo

🧩 The Browser Extension Framework

12,865TypeScript
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#29Netflix/conductor

Conductor is a microservices orchestration engine.

12,780Java
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#30ixartz/Next-js-Boilerplate

🚀🎉📚 Nextjs Boilerplate and Starter with App Router and Page Router support, Tailwind CSS 4 and TypeScript ⚡ Made with developer experience first: Next.js 16 + TypeScript + ESLint + Prettier + Drizzle ORM + Husky + Lint-Staged + Vitest + Testing Library + Playwright + Storybook + Commitlint + VSCode + Sentry + PostCSS + Tailwind CSS ✹

12,644TypeScript
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#31meshery/meshery

Meshery, the cloud native manager

9,960HTML
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#32blueedgetechno/win11React

Windows 11 in React 💻🌈⚡

9,651JavaScript
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#33greatfrontend/top-javascript-interview-questions

Top JavaScript interview questions and answers for Front End Engineers in 2025

8,760MDX
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#34rsuite/rsuite

🧱 A suite of React components .

8,698TypeScript
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#35reactchartjs/react-chartjs-2

React components for Chart.js, the most popular charting library

6,908TypeScript
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#36ixartz/SaaS-Boilerplate

🚀🎉📚 SaaS Boilerplate built with Next.js + Tailwind CSS + Shadcn UI + TypeScript. ⚡ Full-stack React application with Auth, Multi-tenancy, Roles & Permissions, i18n, Landing Page, DB, Logging, Testing

6,840TypeScript
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#37Bogdan-Lyashenko/Under-the-hood-ReactJS

Entire React code base explanation by visual block schemes (Stack version)

6,835JavaScript
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#38nodejs/nodejs.org

The Node.js® Website

6,795TypeScript
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#39TanStack/virtual

🀖 Headless UI for Virtualizing Large Element Lists in JS/TS, React, Solid, Vue and Svelte

6,711TypeScript
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