HTML Entities Encoder / Decoder

Encode and decode HTML entities online. Convert special characters like <, >, & and " to HTML entity equivalents and back. Free browser-based tool.

Your data never leaves your browser

Base64 Encoder / Decoder

Encode and decode Base64 strings instantly in your browser

URL Encoder / Decoder

Encode and decode URL percent-encoding instantly online

HTML Formatter & Beautifier

Format and beautify HTML with proper indentation

Frequently Asked Questions

Why encode HTML entities?

HTML entity encoding prevents XSS attacks by ensuring characters like < and > are treated as text, not HTML tags. Always encode user input before inserting it into HTML.