Base64 Encode & Decode

Convert text to Base64 encoding or decode Base64 strings back to plain text. Everything runs in your browser.

Output

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data as an ASCII string. It's commonly used to embed images in HTML/CSS, encode email attachments (MIME), transmit binary data in JSON/XML, and store credentials in HTTP Basic Authentication headers.

This tool supports full UTF-8 text encoding. Your data never leaves your browser.