Base64 Encoder

Encode text strings and binary bytes into standard Base64 representation.

About this tool

Safely encode credentials, headers, and text into standard Base64 strings for network transmission.

How to use this tool

  1. Type or paste text
  2. Click Run
  3. Copy Base64 output

How it works

Converts UTF-8 character bytes into 6-bit radix-64 ASCII characters.

When to use this tool

  • Creating Basic Auth headers
  • Encoding data for URL parameters

Frequently asked questions

Does it support emojis and special characters?

Yes, uses complete UTF-8 byte serialization.

Limitations

Base64 is an encoding, not cryptographic encryption.

Privacy

Executed entirely in your browser.