Encoder / Decoder

Encode and decode text using Base64, URL encoding, or HTML entities.

Input

Output

Quick Reference

Base64

Binary-to-text encoding. Commonly used for embedding images in HTML/CSS or encoding data in URLs and APIs.

URL Encoding

Converts special characters to percent-encoded format (e.g., space → %20). Required for URL parameters.

HTML Entities

Escapes special HTML characters (e.g., < → &lt;). Essential for preventing XSS attacks.