Which characters are encoded?

The tool encodes the five characters that have special meaning in HTML: ampersand (&), less-than ( ), double quote ("), and single quote (').

Does HTML encoding prevent XSS?

HTML entity encoding is a key defense against XSS (cross-site scripting) attacks. By converting characters like into entities, you prevent browsers from interpreting user-supplied text as HTML or JavaScript.

When should I use HTML encoding?

Use HTML encoding whenever you display user-generated content in a web page, embed text inside HTML attributes, or store content that will later be rendered as HTML.

HTML Encode

Encode angle brackets, ampersands, and quotes into safe HTML entities. Prevents display issues and XSS in web content. Handles all special characters that could break HTML rendering. Runs entirely in your browser — your data never leaves your device.

Your files are processed entirely in your browser. Nothing is uploaded to any server.

How to Use HTML Encode

1
Paste or type your text
Enter your text in the input area. You can paste from clipboard or type directly.
2
See instant results
The tool processes your text automatically as you type. Adjust options if available.
3
Copy the output
Click the copy button to save the result to your clipboard. No data leaves your browser.

Frequently Asked Questions

Next Steps

Decode encoded HTML

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