Base64 Encoder & Decoder â€“ Encode or Decode Base64 Strings

Encode text to Base64 or decode Base64 back to plain text.

Processed 100% locally in your browser. Never sent to our server.

Plain Text Input:

Output Result:

About Base64 Encoder & Decoder â€“ Encode or Decode Base64 Strings

Converts between UTF-8 text and Base64 encoding using the browser's built-in btoa/atob functions.