HTML Encoder & Decoder
Convert special characters to HTML entities and back — instantly, in your browser. Handles all five critical HTML characters (&, <, >, ", ') plus named entities ( , ©, ™) and numeric entities. Essential for safely displaying user content in HTML and preventing XSS vulnerabilities.
How to Use the HTML Encoder & Decoder
- 1
Select Encode or Decode
Choose "Encode" to convert raw special characters to HTML entities, or "Decode" to convert entities back to plain text.
- 2
Paste your content
Paste the text you want to encode or decode into the input field.
- 3
Review the output
The encoded or decoded result appears instantly in the output area.
- 4
Copy and use
Copy the output and use it safely in HTML attributes, text nodes, or database storage.
Key Features
XSS Prevention
Properly escape user content before inserting into HTML to prevent Cross-Site Scripting attacks.
Two-Way Conversion
Encode raw text to HTML entities and decode HTML entities back to plain text.
Private
Your content — including proprietary templates and user data — never leaves your browser.
Pro Tips
The five critical characters that MUST be encoded in HTML: & → &, < → <, > → >, " → ", ' → '
For production code, use your framework's built-in escaping (htmlspecialchars in PHP, React's JSX escaping, etc.) rather than manual encoding.
HTML encoding and URL encoding are not interchangeable — a URL-encoded string embedded in HTML still needs HTML encoding applied separately.
Privacy Note
All processing in this tool runs entirely in your browser — no data is transmitted to any server. Your input is never logged, stored, or shared. This tool is free to use with no account or registration required.
Frequently Asked Questions
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Your input is processed locally in your browser and is never stored, transmitted, or shared with any server. See our Privacy Policy.