markdowntohtml/index.html at main · turnolos/markdowntohtml · GitHub

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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Markdown to HTML Copy Tool</title>
  <!-- Marked.js (CDN) to parse Markdown -->
  <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
  <style>
    body {
      font-family: Arial, sans-serif;
      margin: 20px;
      max-width: 600px;
    }
    h1 {
      margin-bottom: 0.5em;
    }
    textarea {
      width: 100%;
      height: 150px;
      font-family: monospace;
      margin-bottom: 10px;
    }
    button {
      margin: 5px 0;
      padding: 6px 12px;
      cursor: pointer;
    }
    #preview {
      margin-top: 20px;
      border: 1px solid #ccc;
      padding: 10px;
      min-height: 100px;
    }
  </style>
</head>
<body>

  <h1>Markdown to HTML Copy Tool</h1>

  <p>Paste your Markdown below, then render and copy the result as HTML.</p>

  <textarea id="mdInput">
  </textarea>

  <br>
  <button id="renderBtn">Render Preview</button>
  <button id="copyBtn">Copy as HTML</button>

  <div id="preview"></div>

  <script>
    // 1) Render button
    document.getElementById('renderBtn').addEventListener('click', function() {
      var rawMD = document.getElementById('mdInput').value;
      // Convert Markdown -> HTML
      var html = marked.parse(rawMD);
      // Display in preview div
      document.getElementById('preview').innerHTML = html;
    });

    // 2) Copy button
    document.getElementById('copyBtn').addEventListener('click', async function() {
      var rawMD = document.getElementById('mdInput').value;
      var html = marked.parse(rawMD);

      // Check if Clipboard API is available
      if (navigator.clipboard && navigator.clipboard.write) {
        try {
          // We'll copy two formats:
          //   text/html for rich text
          //   text/plain for fallback
          var blobHtml = new Blob([html], { type: 'text/html' });
          var blobText = new Blob([rawMD], { type: 'text/plain' });
          var clipboardItem = new ClipboardItem({
            'text/html': blobHtml,
            'text/plain': blobText
          });

          await navigator.clipboard.write([clipboardItem]);
          alert('Copied rendered HTML to clipboard!');
        } catch (err) {
          console.error('Copy failed', err);
          alert('Failed to copy: ' + err);
        }
      } else {
        alert('Clipboard API not supported in this browser. Try Chrome, Edge, etc.');
      }
    });
  </script>
</body>
</html>