Base64 Encode/Decode

Encode and decode Base64 strings online. Supports text and UTF-8. Free browser-based tool.

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data as ASCII strings. It's commonly used to embed images in HTML/CSS, encode email attachments, and transmit data in URLs and APIs.

Features

  • Encode — Convert text to Base64
  • Decode — Convert Base64 back to text
  • UTF-8 support — Handles Unicode characters correctly
  • Privacy — All processing happens in your browser