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Base64 Encoder / Decoder

Encode any text to Base64 or decode a Base64 string back to plain text instantly. Completely private — all processing is in your browser.

0 chars
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⚠ Invalid Base64 input
✓ Copied!

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data using only ASCII characters. It's commonly used to embed images in HTML/CSS, transmit data over email (MIME), and store binary data in JSON or XML.

  1. Select Encode to convert plain text → Base64, or Decode to reverse it.
  2. Paste your input text and the result updates instantly.
  3. Copy or download the output.