Binary-Decimal-Converter/index.html at main · Refloow/Binary-Decimal-Converter · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Binary ↔ Decimal Converter</title>
  <style>
    /* Minimal dark-mode styling */
    body {
      margin: 0;
      padding: 1rem;
      background: #121212;
      color: #fff;
      font-family: sans-serif;
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
      align-items: center;
      justify-content: flex-start;
      min-height: 100vh;
    }

    h1 {
      margin: 0;
      font-size: 1.5rem;
      text-align: center;
    }

    .converter {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
      width: 100%;
      max-width: 500px;
    }

    label {
      font-weight: bold;
      margin-bottom: 0.2rem;
    }

    input {
      width: 100%;
      padding: 0.6rem;
      border: none;
      border-radius: 4px;
      background: #222;
      color: #fff;
      font-size: 1rem;
    }

    button {
      padding: 0.6rem 1rem;
      border: none;
      border-radius: 4px;
      background: #333;
      color: #fff;
      cursor: pointer;
      font-size: 1rem;
    }

    button:hover {
      background: #444;
    }

    .output {
      background: #1e1e1e;
      margin-top: 0.3rem;
    }

    @media (max-width: 600px) {
      h1 {
        font-size: 1.2rem;
      }
    }
  </style>
</head>
<body>
  <h1>Binary ↔ Decimal Converter</h1>

  <div class="converter">
    <label for="decimalInput">Decimal Input</label>
    <input type="text" id="decimalInput" placeholder="Enter decimal" />
    <button onclick="convertDecimalToBinary()">Convert Decimal → Binary</button>
    <input type="text" id="decimalToBinaryOutput" class="output" placeholder="Binary result" readonly />
  </div>

  <div class="converter">
    <label for="binaryInput">Binary Input</label>
    <input type="text" id="binaryInput" placeholder="Enter binary" />
    <button onclick="convertBinaryToDecimal()">Convert Binary → Decimal</button>
    <input type="text" id="binaryToDecimalOutput" class="output" placeholder="Decimal result" readonly />
  </div>

  <script>
    function convertDecimalToBinary() {
      const decimalInput = document.getElementById('decimalInput').value.trim();
      const outputField = document.getElementById('decimalToBinaryOutput');

      if (!decimalInput) {
        outputField.value = '';
        return;
      }

      // Split by '.' to handle multiple segments (like IP address segments)
      const segments = decimalInput.split('.');
      try {
        const binarySegments = segments.map(seg => {
          const num = parseInt(seg, 10);
          if (isNaN(num) || num < 0 || num > 255) {
            throw new Error('Invalid decimal segment');
          }
          // Convert to binary and left-pad to 8 bits
          return num.toString(2).padStart(8, '0');
        });
        // Rejoin with '.'
        outputField.value = binarySegments.join('.');
      } catch (err) {
        outputField.value = 'Invalid input';
      }
    }

    function convertBinaryToDecimal() {
      const binaryInput = document.getElementById('binaryInput').value.trim();
      const outputField = document.getElementById('binaryToDecimalOutput');

      if (!binaryInput) {
        outputField.value = '';
        return;
      }

      // Split by '.' for multiple segments
      const segments = binaryInput.split('.');
      try {
        const decimalSegments = segments.map(seg => {
          // parse binary (up to 8 bits if IP style)
          if (seg.length > 8) {
            throw new Error('Binary segment longer than 8 bits');
          }
          const num = parseInt(seg, 2);
          if (isNaN(num) || num < 0 || num > 255) {
            throw new Error('Invalid binary segment');
          }
          return num.toString();
        });
        outputField.value = decimalSegments.join('.');
      } catch (err) {
        outputField.value = 'Invalid input';
      }
    }
  </script>
</body>
</html>