React Framework Demo

Live, interactive React components hydrated on the client.

Learn more about React

Transform Your Web Experience with React

React is a declarative, efficient, and flexible JavaScript library for building user interfaces. Developed and maintained by Facebook (now Meta), it has revolutionized how developers approach frontend development by introducing a component-based architecture that makes code more predictable, maintainable, and reusable.

Why React is the Right Choice for Modern Web Applications:

  • Component-Based Architecture: React’s modular approach allows you to build encapsulated components that manage their own state, then compose them to create complex UIs. This results in more maintainable codebases and promotes code reuse across your application.

  • Virtual DOM for Optimal Performance: React’s Virtual DOM implementation minimizes expensive DOM operations by calculating the most efficient way to update the browser’s DOM. This optimization significantly improves application performance, especially for data-intensive interfaces.

  • Unidirectional Data Flow: React’s one-way data binding provides better control over your application, making it easier to understand how data changes affect the UI. This predictable state management reduces bugs and simplifies debugging.

  • Rich Ecosystem and Community: With a vast ecosystem of libraries, tools, and extensions (Redux, React Router, Next.js), React offers solutions for virtually any web development challenge. Its massive community ensures continuous improvement and readily available support.

  • Cross-Platform Development: React’s principles extend beyond the web with React Native, allowing you to build native mobile applications using the same component concepts and similar syntax, maximizing code reuse across platforms.

React empowers businesses to deliver high-quality, interactive user experiences that engage customers and drive conversions. Its efficiency in development and runtime performance makes it an excellent investment for projects of any scale, from startups to enterprise applications.

Interactive Demos

Interactive Color Picker

A simple, stateful color picker built with React and Framer Motion for animations.

ColorPickerHero.tsx

import React, { useState } from 'react';
import { motion, LazyMotion, domAnimation } from 'framer-motion';

const ColorPickerHero: React.FC = () => {
  const [color, setColor] = useState('#3B82F6');

  return (
    <LazyMotion features={domAnimation}>
      <motion.div
        className="relative w-full"
        initial={{ opacity: 0, y: 20 }}
        animate={{ opacity: 1, y: 0 }}
        transition={{ duration: 0.5 }}
      >
        <div className="bg-base-300/50 rounded-2xl border border-base-300 flex flex-col p-6 gap-4">
          <div className="text-center space-y-1">
            <p className="font-medium text-lg">Try it yourself!</p>
            <p className="text-sm opacity-70">Click the input below to choose a color</p>
          </div>
          <input
            type="color"
            value={color}
            onChange={(e) => setColor(e.target.value)}
            className="w-full h-12 rounded-lg cursor-pointer bg-transparent hover:scale-[1.02] transition-transform"
          />
          <div
            style={{ backgroundColor: color }}
            className="w-full h-20 rounded-lg shadow-inner border border-black/10"
          />
          <div className="text-center">
            <p className="text-sm opacity-70">Selected color: <span className="font-mono p-1 bg-base-100 rounded-md">{color}</span></p>
          </div>
        </div>
      </motion.div>
    </LazyMotion>
  );
};

export default ColorPickerHero;

Calculator App

A functional calculator with state management for handling user input and calculations.

Calculator.tsx

"use client"

import { useState } from "react"

export default function Calculator() {
  const [displayValue, setDisplayValue] = useState("0")
  const [graphPoints, setGraphPoints] = useState<{ x: number; y: number }[]>([])

  // Scientific functions
  const scientificFunctions = {
    sin: Math.sin,
    cos: Math.cos,
    tan: Math.tan,
    log: Math.log10,
    ln: Math.log,
    sqrt: Math.sqrt,
    pow2: (x: number) => Math.pow(x, 2),
    pow3: (x: number) => Math.pow(x, 3),
  }

  const handleNumber = (num: string) => {
    setDisplayValue((prev) => (prev === "0" ? num : prev + num))
  }

  const handleOperator = (op: string) => {
    setDisplayValue((prev) => prev + op)
  }

  const handleScientific = (func: keyof typeof scientificFunctions) => {
    try {
      const value = Number.parseFloat(displayValue)
      const result = scientificFunctions[func](value)
      setDisplayValue(result.toString())
    } catch (error) {
      setDisplayValue("Error")
    }
  }

  const calculate = () => {
    try {
      setDisplayValue(eval(displayValue).toString())
    } catch {
      setDisplayValue("Error")
    }
  }

  const clear = () => {
    setDisplayValue("0")
  }

  return (
    <div className="w-full max-w-md mx-auto">
      <div role="tablist" className="tabs tabs-lifted">
        <input type="radio" name="calculator_tabs" role="tab" className="tab" aria-label="Calculator" defaultChecked />
        <div role="tabpanel" className="tab-content bg-base-200 border-base-300 rounded-box p-6">
            <input
              type="text"
              value={displayValue}
              readOnly
              className="input input-bordered text-right text-2xl mb-4 font-mono w-full"
            />
            <div className="grid grid-cols-4 gap-2">
              {/* Scientific Functions */}
              <button className="btn btn-outline" onClick={() => handleScientific("sin")}>sin</button>
              <button className="btn btn-outline" onClick={() => handleScientific("cos")}>cos</button>
              <button className="btn btn-outline" onClick={() => handleScientific("tan")}>tan</button>
              <button className="btn btn-outline" onClick={() => handleScientific("log")}>log</button>
              <button className="btn btn-outline" onClick={() => handleScientific("ln")}>ln</button>
              <button className="btn btn-outline" onClick={() => handleScientific("sqrt")}>√</button>
              <button className="btn btn-outline" onClick={() => handleScientific("pow2")}>x²</button>
              <button className="btn btn-outline" onClick={() => handleScientific("pow3")}>x³</button>

              {/* Numbers and Basic Operators */}
              <button className="btn" onClick={() => handleNumber("7")}>7</button>
              <button className="btn" onClick={() => handleNumber("8")}>8</button>
              <button className="btn" onClick={() => handleNumber("9")}>9</button>
              <button className="btn btn-primary" onClick={() => handleOperator("+")}>+</button>
              <button className="btn" onClick={() => handleNumber("4")}>4</button>
              <button className="btn" onClick={() => handleNumber("5")}>5</button>
              <button className="btn" onClick={() => handleNumber("6")}>6</button>
              <button className="btn btn-primary" onClick={() => handleOperator("-")}>-</button>
              <button className="btn" onClick={() => handleNumber("1")}>1</button>
              <button className="btn" onClick={() => handleNumber("2")}>2</button>
              <button className="btn" onClick={() => handleNumber("3")}>3</button>
              <button className="btn btn-primary" onClick={() => handleOperator("*")}>×</button>
              <button className="btn" onClick={() => handleNumber("0")}>0</button>
              <button className="btn" onClick={() => handleNumber(".")}>.</button>
              <button className="btn btn-accent" onClick={calculate}>=</button>
              <button className="btn btn-primary" onClick={() => handleOperator("/")}>÷</button>
              <button className="btn btn-error col-span-4" onClick={clear}>Clear</button>
            </div>
        </div>

        <input type="radio" name="calculator_tabs" role="tab" className="tab" aria-label="Graph" />
        <div role="tabpanel" className="tab-content bg-base-200 border-base-300 rounded-box p-6">
          <p>Graph functionality coming soon...</p>
        </div>
      </div>
    </div>
  )
}