Base64 Encoder & Decoder

Encode plain text to Base64 format or decode Base64 strings back to readable text.

Input Text / Base64

Result Output

What is Base64 Encoding?

Base64 is a binary-to-text conversion scheme that transforms raw data strings into an ASCII format composed of 64 standard characters. It is widely utilized across web applications to safely transfer complex data packets through text-based protocols without risking data integrity loss.

Common Applications of Base64

Data URIs: Embedding small graphic assets, icons, or custom fonts directly inline within HTML or CSS stylesheets.
API Authentication: Packaging client credentials or tokens safely for delivery via HTTP authorization headers.
Safely transmitting binary data payloads or special characters across legacy email and messaging structures.

Secure Browser-Side Execution

This utility executes entirely within your browser environment using local client-side scripts. Your sensitive strings and encoded files are never routed or saved on external servers, guaranteeing complete confidentiality.