CSI driver built on top of rclone bringing cloud storage mounts to your pods with ease.

This driver enables Kubernetes pods to mount cloud storage backends as persistent volumes using rclone, supporting 50+ storage providers including S3, Google Cloud Storage, Azure Blob, Dropbox, and many more.

• Rclone CSI Driver for Kubernetes @ GitHub.

RDS Extended Support Cost Estimator Script.

These scripts can be used to help estimate the cost of RDS Extended Support for RDS instances & clusters in your AWS account and organization.

These scripts should be run from the payer account of your organization to identify the RDS clusters in your organization that will be impacted by the extended support and the estimated additional cost.

RE# - A high-performance, automata based regex engine with first-class support for intersection and complement operations.

RE# compiles patterns into deterministic automata. All matching is non-backtracking with guaranteed linear-time execution. RE# extends System.Text.RegularExpressions syntax with intersection (&), complement (~), and a universal wildcard (_), enabling patterns that are impossible or impractical to express with standard regex.

Related contents:

• RE#: how we built the world's fastest regex engine in F# @ ian erik varatalu.
• finding all regex matches has always been O(n²). even in the engines built to prevent it @ ian erik varatalu.

RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.

Related contents:

• Fast(er) regular expression engines in Ruby @ SerpApi.

The library for web and native user interfaces.

• React @ GitHub.

Related contents:

• JUST FUCKING USE REACT.
• Just Use React @ Epic React.
• Reactivity is easy @ romgrk.
• Level Up React: Deep dive into state and useState @ 56kode.
• The History of React Through Code @ Playful Programming.
• React Server Components: How We Got Here @ Epic React.
• The Useless useCallback @ TkDodo's blog.
• Let's Write React Hooks From Scratch @ Playful Programming.
• Unlocking Web Workers with React: A Step-by-Step Guide @ Rahul's Blog.
• React Won by Default – And It's Killing Frontend Innovation @ Loren Stewart.
• React’s useTransition and state update reordering @ Jordan Eldredge.
• Cut styled-components into pieces: This is our last resort @ Sanity.
• You may be looking for a useSyncExternalStore @ swizec.com.
• Stop using .reverse().find(): meet findLast() @ Matt Smith.
• React <ViewTransition>: Smooth Animations Made Simple @ certificates.dev.
• The nuance of React rendering behaviour as it relates to children @ Black Sheep Code.
• Concurrent Hydration with useSyncExternalStore @ kurtextrem.
• Server and Client Component Composition in Practice @ Aurora Scharff.
• State-based vs Signal-based rendering @ Jovi De Croock.
• React Server Components: Do They Really Improve Performance? @ Developer Way.
• Using Atomic State to Improve React Performance in Deeply Nested Component Trees @ Harbor.
• Why startups choose React (and when you shouldn't) @ Evil Martians.
• dead framework theory @ AI Focus.
• Using Atomic State to Improve React Performance in Deeply Nested Component Trees @ Harbor.
• ChatGPT as My Coding Mentor: How I Learned React and Next.js as a Junior Developer @ iO tech_hub.
• Absolutely everything you need to know about act() in React tests @ HowToTestFrontend.
• Why use React? @ adactio.
• The next era of React has arrived: Here’s what you need to know @ LogRocket.
• React has finally solved its biggest problem: The joys of useEffectEvent @ LogRocket.
• useOptimistic Won't Save You @ Colum Kelly.
• Building Bulletproof React Components @ Shu Ding.
• Frontend Memory Leaks: A 500-Repository Static Analysis and Five-Scenario Benchmark Study @ StackInsight.
• Understanding Why React Fiber Exists @ Sanku.
• Start naming your useEffect functions, you will thank me later @ Neciu Dan.
• use(): The Hook That Breaks the Rules (On Purpose) @ Sascha Becker.
• I let React Compiler handle memoization: Here’s what actually broke @ LogRocket.
• React useOptimistic: Optimistic UI Patterns That Actually Work (2026) @ Carlos Oliva Pascual's dev.to.

A JavaScript library for building user interfaces

High Fidelity Detection Mechanism for RSC/Next.js RCE (CVE-2025-55182 & CVE-2025-66478).

A command-line tool for detecting CVE-2025-55182 and CVE-2025-66478 in Next.js applications using React Server Components.

The Open-Source React Framework for B2B Apps.

React-admin offers the best developer experience, lets you focus on business needs, and build delightful user interfaces.

• React-Admin @ GitHub.

Create the cropper you desire.

This react cropper library gives you the possibility to create croppers that exactly suited for your website design. Don’t limit yourself. Rotate, zoom, transitions, autozoom and many other features included.

• React Advanced Cropper @ GitHub.

Turn React hooks into LLM tools

ReactBench is an evaluation for coding agents on realistic React work. Models can pass every test in today’s benchmarks and still write React that fails in production. Tests verify behavior, but they miss React performance, accessibility, and quality issues.

• ReactBench @ GitHub.

Animated UI Components For React.

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

• React Bits @ GitHub.

Setup Create React App with React Boilerplate. Highly scalable & Best DX & Performance Focused & Best practices. Crafted for highly scalable & performant and easily maintainable React.js applications with a focus on best DX and best practices.

An off-canvas sidebar React component with a collection of effects and styles using CSS transitions and SVG path animations.

React Component for drawing in canvas. A simple yet powerful canvas-drawing component for React.

Let coding agents diagnose and fix your React code.

One command scans your codebase for security, performance, correctness, and architecture issues, then outputs a 0–100 score with actionable diagnostics.

• React Doctor @ GitHub.

💌 Build and send emails using React.

A collection of high-quality, unstyled components for creating beautiful emails using React and TypeScript.

• React Email @ GitHub.

Related contents:

• ILS ONT RESOLU LE PROBLEME DES EMAILS EN REACT @ Melvynx's YouTube :fr:.
• Ils ont résolu l'envoie de mail pour nos application NextJS 🤯 @ Melvyn's Twitter :fr:.
• E131: News Mai 2026, TypeScript 7 en beta, faux package TanStack et agent Cursor destructeur @ Double Slash :fr:.
• React Email 6.0 @ Resend.

Coding challenges.

Practice your technical interview skills on coding challenges taken from real technical interviews. Target your weak skills and level up your game.

Add a mouse-tracing glow effect to React components.

Grab any element on in your app and give it to Cursor, Claude Code, etc.

By default coding agents cannot access elements on your page. React Grab fixes this - just point and click to provide context!

• React Grab @ GitHub.

Select context for coding agents directly from your website.

How? Point at any element and press ⌘C (Mac) or Ctrl+C (Windows/Linux) to copy the file name, React component, and HTML source code.

It makes tools like Cursor, Claude Code, Copilot run up to 3× faster and more accurate.

• React Grab @ GitHub.

Simple React forms validation. Performant, flexible and extensible forms with easy-to-use validation.

A React Book for the Reluctant.

A complete React education disguised as a 16-chapter complaint about React. Written by an AI that’s never had to clear node_modules to free up disk space, for developers who have.

• Reactive: A React Book for the Reluctant @ GitHub.

React is Awful: A fun way to learn a bad thing.

A complete React education disguised as a 21-chapter complaint about React. Written by an AI that's never had to clear node_modules to free up disk space, for developers who have.

A free and open-source resume builder.

A free and open-source resume builder that simplifies the process of creating, updating, and sharing your resume. A one-of-a-kind resume builder that keeps your privacy in mind. Completely secure, customizable, portable, open-source and free forever. Try it out today!

• Reactive Resume @ GitHub.

An API for asynchronous programming with observable streams.

ReactiveX is a combination of the best ideas from the Observer pattern, the Iterator pattern, and functional programming.

• ReactiveX @ GitHub.

Cute illustrations for React Apps.

React Kawaii is an open source library of cute SVG illustrations. Perfect if you want to give some cuteness to your React App.

• React Kawaii @ GitHub.

React Kawaii is a library of cute illustrations that are easily customisable. They are ideal to give some cuteness and personality to your ReactJS application. Just pick an illustration and set the mood and it's done!

A community-curated database of the most popular and frequently updated React libraries.

Enterprise routing for React applications. Powerful, enterprise-grade routing for React applications Declarative & asynchronous route elements and data loaders, first-class Search Param APIs, nested-routing, code-splitting and so much more.

A higher order component to wrap react-markdown with support for MDX component elements.

Related contents:

• Unlocking Rich UI Component Rendering in AI Responses @ Tim Etler.

This project's goal is to be able to create a fully accessible material design styled website using React Components and SASS. With the separation of styles in SASS instead of inline styles, it should hopefully be easy to create custom components with the existing styles.

Lightweight React SVG pie charts, with versatile options and CSS animation included. ~2kB gzipped.

React hero animations. Motion Layout. Create beautiful immersive hero animations using shared components.

React Motion Layout @ GitHub.

Learn once, write anywhere. A framework for building native applications using React .

React Native brings React's declarative UI framework to iOS and Android. With React Native, you use native UI controls and have full access to the native platform.

• React Native @ GitHub.

Related contents:

• Boost Your React Native App Start Time: Stop Shipping Lottie JSON Incorrectly @ Davyd NRB's dev.to.
• We Thought React Native Was the Answer — Until Our App Hit 190% CPU @ Motion Engineering Blog.
• Adopting Cross-Platform React Native at Scale: Zalando’s Learnings | Rene Eichhorn at RUC 2025 @ Callstack's YouTube.
• Accelerating Mobile App development at Zalando with Rendering Engine and React Native @ Zalando Engineering Blog.
• What I've learned from shipping 25+ mobile apps @ Joe Masilotti.
• The Rails developers' guide to mobile app frameworks @ Masilotti.com.
• The real cost of React Native animations: benchmarking every approach @ Expo.
• The Go-To Guide for Understanding Keyboards in React Native (Part 1) @ Margelo.

On-device LLM execution in React Native with Vercel AI SDK compatibility.

Run LLMs on-device in React Native via MLC LLM Engine with compatibility for Vercel AI SDK.

React Native plugin for Apple Intelligence and Foundation Models.

A React Native plugin to access Apple Intelligence Foundation Models using native on-device LLM APIs. This module lets you check model availability, create sessions, generate structured outputs (JSON), and text using Apple's LLMs, all from React Native.

The main goal of this project is to show you how to register and authenticate a user and access protected resources from a React-Native app to a NodeJS server.

🚀 Automatically generates skeleton based on your existing UI layout without manual configuration.

A performant interactive bottom sheet with fully configurable options 🚀

• React Native Bottom Sheet @ GitHub

React Native Bottom Tabs

Bottom Tabs using native platform primitives.

• React Native Bottom Tabs @ GitHub.

A declarative cross-platform React Native calendar component for iOS and Android.

Enhanced developer tools for React Native applications, supporting React Query DevTools and device storage monitoring with a beautiful native interface.

Beautiful macOS app for debugging React Query in ANY React-based application (Mobile, Web, TV, VR). Monitor queries across devices in real-time with a gorgeous native interface. Features device management, query visualization, state simulation, and automatic production safety. Works with React Native, React Web, Next.js, Expo, and any platform where.

Declarative way to run AI models in React Native on device, powered by ExecuTorch.

React Native ExecuTorch is a declarative way to run AI models in React Native on device, powered by ExecuTorch 🚀. It offers out-of-the-box support for many LLMs, computer vision models, and many many more. Feel free to check them out on our HuggingFace page.

ExecuTorch is a novel framework created by Meta that enables running AI models on devices such as mobile phones or microcontrollers.

• React Native ExecuTorch @ GitHub.

Related contents:

• Introducing React Native RAG: Local & Offline Retrieval-Augmented Generation @ Software Mansion's Medium.

🔥 Fade gradient wrapper for React Native scrollable views and overlays on iOS and Android.

rn-fade-wrapper is a simple, highly-performant React Native component that adds smooth, customizable fade gradients to the edges of any content. Perfect for enhancing the user experience in scrollable containers, lists, carousels, modals, or any view with overflowing content.

Build native Windows & macOS apps with Javascript and React.

• React Native for Windows @ GitHub.

Related contents:

• No, Windows Start does not use React @ pathar.tl.

React Native Godot allows embedding the Godot Engine into React Native applications.

Touch-to-grab context tool for React Native UI changes.

Bridge the context gap: point at the exact native UI element, capture precise source context, and hand it to your coding agent without guesswork.

⚡️ The fastest key/value storage for React Native. ~30x faster than AsyncStorage!

MMKV is an efficient, small mobile key-value storage framework developed by WeChat. react-native-mmkv is a library that allows you to easily use MMKV inside your React Native app through fast and direct JS bindings to the native C++ library.

React Native Reanimated provides a more comprehensive, low level abstraction for the Animated library API to be built on top of and hence allow for much greater flexibility especially when it comes to gesture based interactions.

• React Native Reanimated @ GitHub.

Related contents:

• Reanimated 4 Stable Release — the Future of React Native Animations @ Software Mansion's Medium.

Run React Native in your browser. Write, bundle, and preview with HMR, Expo Router, and npm support — all client-side.

reactnative.run is an open-source, browser-based development environment for React Native apps.

• reactnative.run @ GitHub.

Native Navigation primitives for your React Native app.

This project aims to expose native navigation container components to React Native. It is not designed to be used as a standalone library but rather as a dependency of a full-featured navigation library.

• React Native Screens @ GitHub.

Related contents:

• Introducing React Native Screens 4.0.0 @ Software Mansion's Medium.

Compile-time Tailwind CSS for React Native with zero runtime overhead. Transform className props to optimized StyleSheet.create() calls at build time.

• React Native Tailwind @ GitHub.

True Native Bottom Sheet. The true native bottom sheet experience for your React Native Apps.

• React Native True Sheet @ GitHub.

The free and open source React Native vibe coding IDE Text to mobile apps in seconds Ask chat anything, and turn your words into iOS, Android and web apps at the same time.

The React Native Vibe Code SDK lets you build text to mobile & web apps in seconds. A full suite of packages to run your your own vibe coding features or platform.

• React Native Vibe Code @ GitHub.

Routing and navigation for Expo and React Native apps.

• React Navigation @ GitHub.

A react null renderer

React component library for vintage icons from classic games, software and operating systems.

A comprehensive React component library featuring over 2,300 classic icons from vintage operating systems and software. Includes iconic designs from Windows 95, 98, XP, Vista, 7, classic games, and retro applications. Perfect for retro-themed applications, nostalgic UIs, and preserving digital history.

• React Old Icons @ GitHub.

A free Windows-compatible Operating System.

Imagine running your favorite Windows applications and drivers in an open-source environment you can trust. That's the mission of ReactOS

• ReactOS @ GitHub.

Event-driven, non-blocking I/O with PHP.

ReactPHP is a low-level library for event-driven programming in PHP. At its core is an event loop, on top of which it provides low-level utilities, such as: Streams abstraction, async DNS resolver, network client/server, HTTP client/server and interaction with processes. Third-party libraries can use these components to create async network clients/servers and more.

• ReactPHP @ GitHub.
• My road to fibers with ReactPHP @ Cees-Jan.