Top 23 ReactJS Open-Source Projects

1. zustand

   1 311 58,784 8.6 TypeScript

   🐻 Bear necessities for state management in React

   

   Project mention: 7 Free Tools and Resources for Building Well-Structured React Applications | dev.to | 2026-05-07

   Zustand is a small, fast state management library for React. Its API is intentionally minimal: you define a store with state and actions, and you consume the store with a hook. There is no boilerplate beyond defining what the store holds and what operations change it.

2. AppSignal

   www.appsignal.com sponsored

   AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.

   

3. Twenty

   2 42 58,139 10.0 TypeScript

   Building a modern alternative to Salesforce.

   

   Project mention: 15 merged IME fixes: the recurring ways Japanese typing breaks web apps | dev.to | 2026-10-06

   twentyhq/twenty #22270: chat-thread input and attachment rename input.

4. react-bits

   3 4 48,816 9.6 JavaScript

   The biggest open source library of animated, interactive & fully customizable React and NextJS components for building memorable websites.

   

   Project mention: How I Fixed a CSS Animation Bug in an Open Source React Library | dev.to | 2026-05-26

   If you want to check out the PR: https://github.com/DavidHDev/react-bits/pull/851

5. react-hook-form

   4 267 44,872 9.6 TypeScript

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

   

   Project mention: Leaving Ember for React: What Your Conventions Were Hiding | dev.to | 2026-10-05

6. reactjs-interview-questions

   5 28 44,851 7.3 JavaScript

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

   

7. ToolJet

   6 197 41,056 10.0 HTML

   Open-source foundation of ToolJet AI - the enterprise app generation platform for internal tools, dashboards, business applications, workflows and AI agents. Build visually, from a prompt, or from Claude Code, Codex and Cursor over MCP 🚀

   

   Project mention: LongLink alternatives - reflex, streamlit, appsmith, ToolJet, and budibase | libhunt.com/r/longlink | 2026-09-08

8. chakra-ui

   7 358 40,673 9.5 TypeScript

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

   

   Project mention: chakra-ui VS ui - a user suggested alternative | libhunt.com/r/chakra-ui | 2025-10-11

9. SaaSHub

   www.saashub.com sponsored

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

10. novu

    8 150 40,131 10.0 TypeScript

    The open-source communication infrastructure for agents and products

    

    Project mention: The open-source Agent Communication Infrastructure | news.ycombinator.com | 2026-06-21

11. CopilotKit

    9 35 37,905 10.0 TypeScript

    The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol

    

    Project mention: 15 merged IME fixes: the recurring ways Japanese typing breaks web apps | dev.to | 2026-10-06

    CopilotKit/CopilotKit #5764: Angular chat input submitted during composition.

12. taro

    10 1 37,710 8.4 TypeScript

    开放式跨端跨框架解决方案，支持使用 React/Vue 等框架来开发微信/京东/百度/支付宝/字节跳动/ QQ 小程序/H5/React Native 等应用。

    

13. signoz

    11 395 32,309 9.9 TypeScript

    SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps.

    

    Project mention: Why ClickHouse® fills the disk in self-hosted Langfuse and SigNoz, and how to fix it | dev.to | 2026-09-25

14. conductor

    12 14 32,267 9.8 Java

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

    

15. heroui

    13 57 30,895 9.7 TypeScript

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

    

    Project mention: How to Make Your App Look Good When You’re Not a Designer | dev.to | 2026-08-06

    I have used HeroUI and Untitled UI, and I consider both good options. Both provide free components, but accessing their more complete collections of components, page examples, and application templates requires buying their paid versions. That can still be a sensible investment if it saves several days of design and development work.

16. mastra

    14 47 28,677 10.0 TypeScript

    Mastra is the modern TypeScript framework for AI-powered applications and agents.

    

    Project mention: LumiRoam: the tour guide for beginner photographers | dev.to | 2026-10-10

    No `storage` configured on Mastra — falling back to an in-memory store. In-memory storage is not durable: all data is lost on restart, and it is not safe for production. Configure a persistent storage adapter (e.g. @mastra/libsql, @mastra/pg, @mastra/cloudflare). See https://mastra.ai/docs/storage status success 58725ms Tower Bridge, Butler's Wharf, Bermondsey Village, Bermondsey, London Borough of Southwark, Greater London, England, SE1 2LY, United Kingdom | Europe/London | clear sky (11% cloud), 75% chance of rain | notes: [ 'Gemma is offline (no GEMMA_BASE_URL), so plans are template text.', 'No GPU sketch server (SKETCH_URL), so sketches are drawn from sun + geometry data.', 'Not saved: MONGODB_URI is not set.' ] ## Tower Bridge [bridge] 10m — golden hour, front-lit, stand=computed photo: File:Tower Bridge at Dawn.jpg plan: { "headline": "Tower Bridge: golden hour, the sun will be behind you", "whereToStand": "About 40 m from it, facing east-south-east.", "lens": "About 29mm (46mm full-frame equivalent); your 18-55mm covers it.", "settings": "f/8, 1/125s, ISO 200.", "tip": "The sun will be behind you, lighting the front evenly. Check the histogram after the first frame and adjust.", "writtenBy": "template" } sketch: geometry 2214 ## Tower of London [tower] 287m — golden hour, front-lit, stand=computed photo: File:Tower of London from the Shard (8515883950).jpg plan: { "headline": "Tower of London: golden hour, the sun will be behind you", "whereToS … [1419 more characters trimmed]

17. react-table

    15 77 28,478 9.6 TypeScript

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

    

18. 30-Days-Of-React

    16 14 27,516 3.1 JavaScript

    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

    

19. react-admin

    17 73 26,956 9.7 TypeScript

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

    

    Project mention: Friday Links #30 — JavaScript Updates, Tools, and Inspiration | dev.to | 2025-10-17

    React Admin v5.12.0, TanStack Router 1.133, React Hook Form v7.65.0, Pixijs v8.14.0

20. redoc

    18 40 25,942 7.1 TypeScript

    📘 OpenAPI/Swagger-generated API Reference Documentation

    

21. Wave Terminal

    19 14 22,463 9.5 Go

    An Open-Source, AI-Native, Terminal Built for Seamless Workflows.

    

    Project mention: strace-ui, Bonsai_term, and the TUI renaissance | news.ycombinator.com | 2026-06-02

    Probably not as extensive as you mean but its sort of a stepping stone.

    https://github.com/wavetermdev/waveterm

22. react-testing-library

    20 18 19,662 4.1 JavaScript

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

    

23. emotion

    21 58 18,020 0.9 JavaScript

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

    

    Project mention: EffCSS hydration: server work, client trust, zero waste | dev.to | 2026-08-08

    To keep the comparison fair, this article picks the vanilla runtime, @emotion/css — the fairest opponent, because it is already framework-agnostic: its css() is a plain function with no React and no render. The catch is how it names a style. On every call, css() runs the whole pipeline in @emotion/serialize, invoked from the core css() in @emotion/css — it evaluates the interpolations, assembles the CSS string and hashes it, returning -:

24. react-bits

    22 7 17,421 2.3

    ✨ React patterns, techniques, tips and tricks ✨ (by vasanthk)

    

25. docs

    23 13 16,900 9.8 Python

    Docs is an open-source text editor: web-native, made for real-time collaboration, cleanly structured documents and sub-documents with full ownership of your data. Built to scale with Django and React. (by suitenumerique)

    

    Project mention: La Suite Docs v5.0.0 released | news.ycombinator.com | 2026-05-09

26. SaaSHub

    www.saashub.com sponsored

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

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Sponsored

AppSignal knows why the f*#k it crashed.

Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.

www.appsignal.com