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Top 23 ReactJS Open-Source Projects
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Project mention: Show HN: Q.js – Smaller than React/Vue, yet more powerful (40KB gzipped) | news.ycombinator.com | 2025-08-30
Not OP, vut take a look at Zustand: https://zustand-demo.pmnd.rs . IMHO one of the best ways I've seen to showcase a library. It's simple, understandable and even reproducable (code is all there).
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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I've been using Coolify in my Homelab for a couple years now, and I have never enjoyed self hosting this much before.
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Project mention: Less Code, More Power - Why React-Forminate is Changing the Form Game | dev.to | 2025-08-11
Click to see: react-hook-form on NPM
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reactjs-interview-questions
List of top 500 ReactJS Interview Questions & Answers....Coding exercise questions are coming soon!!
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🔗 https://github.com/chakra-ui/chakra-ui
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Project mention: The Backend Shift: Leveraging Open Source Powerhouses for Faster, Leaner Apps | dev.to | 2025-05-10
Novu (novu.co):
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taro
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。 https://taro.zone/
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Sevalla
Deploy and host your apps and databases, now with $50 credit! Sevalla is the PaaS you have been looking for! Advanced deployment pipelines, usage-based pricing, preview apps, templates, human support by developers, and much more!
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ToolJet
Low-code platform for building business applications. Connect to databases, cloud storages, GraphQL, API endpoints, Airtable, Google sheets, OpenAI, etc and build apps using drag and drop application builder. Built using JavaScript/TypeScript. 🚀
Project mention: Show HN: ToolJet 3.0 – open-source internal tool and workflow builder | news.ycombinator.com | 2024-11-13 -
Hello HN!
There’s a lot of focus (and money) on scaling LLMs, but while building Twenty [1] we’ve observed that current models are already capable enough for most use-cases. We think that what’s missing today is a new kind of software architecture. One that evolves, learns from feedback, and compile complex patterns to adapt to users. I wrote about this and some of our learnings in the article above, curious to hear your thoughts!
[1] https://github.com/twentyhq/twenty
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conductor
Conductor is an event driven orchestration platform providing durable and highly resilient execution engine for your applications
https://github.com/conductor-oss/conductor
Orkes Conductor is a modern enterprise platform built around that tool:
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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
The GitHub repository 30-Days-Of-React by Asabeneh offers a comprehensive and structured approach to mastering React in just 30 days. It is a good repository to get started in React. It has a guide that will introduce React and explore more topics related to React.
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react-table
🤖 Headless UI for building powerful tables & datagrids for TS/JS - React-Table, Vue-Table, Solid-Table, Svelte-Table
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react-admin
A frontend Framework for single-page applications on top of REST/GraphQL APIs, using TypeScript, React and Material Design
```
The article mentions XML, but the true revolution is JSX itself, which lets you describe any piece of logic as a React element. This opens the possibility to create DSL for everything, just like in Python.
[1]: https://github.com/marmelab/react-admin
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Project mention: InboxNegotiator: Turning Debt Reminders into Payment Plans with AI and Postmark | dev.to | 2025-06-08
UI: shadcn/ui + HeroUI for a modern, responsive interface.
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The OpenAPI Specification (formerly Swagger) has become the industry standard for documenting RESTful APIs. Tools like Swagger UI and ReDoc can generate interactive documentation from OpenAPI definitions, reducing the effort to maintain quality documentation.
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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
This topic describes how you can enforce observability in a simple application using OpenTelemetry and SigNoz.
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react-starter-kit
Edge-native React template in a monorepo setup: Includes Vite frontend, Hono API, TanStack Router, shared types/utilities, and Terraform infra for scalable web development.
Project mention: Next.js VS react-starter-kit - a user suggested alternative | libhunt.com/r/next.js | 2025-08-08Hey everyone, if Next.js feels a bit heavy for your needs or you're after something with Bun's speed, I'd suggest React Starter Kit as a solid alternative: https://github.com/kriasoft/react-starter-kit. It's a production-ready monorepo boilerplate with React 19, TypeScript for end-to-end safety, Tailwind CSS, tRPC for seamless APIs, and effortless Cloudflare Workers deployment—perfect for scalable full-stack apps with less config bloat and edge-native performance. Give it a spin if you're building something fresh!
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react-bits
An open source collection of animated, interactive & fully customizable React components for building stunning, memorable websites. (by DavidHDev)
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CopilotKit
React UI + elegant infrastructure for AI Copilots, AI chatbots, and in-app AI agents. The Agentic last-mile 🪁
The Vibe-Coding Server, built on MCP (Model Context Protocol), gives coding agents structured access to both CopilotKit documentation and actual code examples from the repos.
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react-testing-library
🐐 Simple and complete React DOM testing utilities that encourage good testing practices.
React Testing Library tests React components by simulating how users interact with them, rather than focusing on the implementation details. This library prioritizes the principle of testing components as users interact with them, making tests more resilient to code changes. By avoiding reliance on the internals of the components, it ensures that your tests remain focused on functionality and user experience. It integrates well with Jest and provides utilities to query, simulate interactions, and validate DOM updates effectively.
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Styling in React has evolved from global CSS to more component-centric approaches. CSS-in-JS libraries, such as Styled Components or Emotion, allow developers to write CSS within JavaScript, scoping styles to components and enabling dynamic theming. For example:
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mastra
The TypeScript AI agent framework. ⚡ Assistants, RAG, observability. Supports any LLM: GPT-4, Claude, Gemini, Llama.
You’re going to build the project using the Mastra SDK. Mastra provides an SDK and framework for building AI apps in JavaScript/TypeScript. Run the command npx create-mastra@latest --project-name weather-ai --example --components tools,agents,workflows --llm google to scaffold a new project with the name weather-ai. The generated project will include a sample weather agent and tool.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
ReactJS discussion
ReactJS related posts
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Show HN: Q.js – Smaller than React/Vue, yet more powerful (40KB gzipped)
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Making an Alexa chatbot with Tamb+Deezer 🎶
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Show HN: The first generative UI component library
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Warp sends a terminal session to LLM without user consent
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Show HN: Tambo – Cursor-style assistant for React apps (OSS, self-hosted)
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Unlocking the Power of Zustand: A Simple and Scalable State Management for React
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Supercharging Your React State Management with Zustand
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A note from our sponsor - Sevalla
sevalla.com | 1 Sep 2025
Index
What are some of the best open-source ReactJS projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | zustand | 54,378 |
| 2 | coolify | 44,667 |
| 3 | react-hook-form | 43,755 |
| 4 | reactjs-interview-questions | 42,890 |
| 5 | chakra-ui | 39,605 |
| 6 | novu | 37,658 |
| 7 | taro | 36,865 |
| 8 | ToolJet | 36,372 |
| 9 | Twenty | 35,127 |
| 10 | conductor | 27,005 |
| 11 | 30-Days-Of-React | 26,929 |
| 12 | react-table | 26,889 |
| 13 | react-admin | 26,146 |
| 14 | heroui | 25,288 |
| 15 | redoc | 24,837 |
| 16 | signoz | 23,326 |
| 17 | react-starter-kit | 22,892 |
| 18 | react-bits | 22,780 |
| 19 | CopilotKit | 22,635 |
| 20 | react-testing-library | 19,381 |
| 21 | emotion | 17,859 |
| 22 | react-bits | 17,217 |
| 23 | mastra | 16,147 |
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