Base64 Encoder & Decoder

Convert text to Base64 encoding or decode Base64 back to plain text. Supports full UTF-8 characters. Swap between encode and decode with one click.

About this tool

Base64 is a binary-to-text encoding scheme that represents binary data as ASCII characters. It's commonly used in data URLs, email attachments, and API payloads.

Real-time encode and decode
Full UTF-8 support
One-click swap between modes
Copy result to clipboard

100% client-side. Your data never leaves your browser. No tracking, no cookies.