Base64 Encoder / Decoder

How this tool works

Choose Encode to turn plain text into Base64, or Decode to turn Base64 back into readable text. Conversion happens as soon as you click Convert, and the result is ready to copy immediately.

Base64 is encoding, not encryption

It's a common mistake to treat Base64 as a way to hide or protect data — it isn't. Anyone can decode Base64 instantly with no key or password required; it exists purely to represent binary data as safe, portable text, not to keep anything secret.

Privacy by design

All encoding and decoding happens locally in your browser using standard, built-in JavaScript functions. Nothing you type is sent anywhere.