Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 strings back to plain text. Supports UTF-8 characters.

Runs entirely in your browser - no data is sent to any server.

What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode data that needs to be stored or transferred in environments that only support text.

Common Uses

  • ->Email attachments: MIME encoding for binary files
  • ->Data URLs: Embed images in HTML/CSS
  • ->API auth: HTTP Basic Authentication
  • ->JSON data: Store binary in JSON documents

How to Use

1
Select mode
2
Paste text
3
Click convert
4
Copy result