What is Base64 Encoding and When Should You Actually Use It?

  <h2>Demystifying Base64 Encoding</h2>
  <p>Base64 is not encryption—it is a binary-to-text encoding scheme that translates raw binary data into 64 ASCII characters. It is designed to safely transport binary media through text-only transmission channels like HTTP and email.</p>

  <h3>The 33% Size Overhead Penalty</h3>
  <p>Because Base64 represents 3 binary bytes using 4 ASCII characters, it introduces an inevitable <strong>33% bandwidth overhead</strong>. Never encode large video or photo files in Base64 for web delivery; reserve it strictly for tiny SVG icons or inline authentication tokens.</p>

  <p>Encode and decode strings and files instantly using the <a href="/base64-converter">Boad Base64 Converter</a>.</p>