HTML Encoder — Free Online Tool
Escape HTML special characters into safe entities to prevent markup issues.
About HTML Encoder
The HTML Encoder escapes the characters that have special meaning in HTML, converting them into safe entities so your text displays as written instead of being parsed as markup. This is a core defense against broken pages and cross-site scripting when rendering untrusted content.
It handles the ampersand first to avoid double-encoding, then the angle brackets and quotes, producing output you can drop straight into templates and attributes. All work happens locally in your browser, keeping your input fast to process and completely private.
How to Use HTML Encoder
- Type or paste the text or HTML you want to escape into the input box.
- Click 'Encode' to convert special characters into entities.
- Review the escaped output in the result box.
- Click 'Copy Result' to use the encoded HTML in your project.
Key Features
Escapes & < > and both quote characters into safe entities
Encodes the ampersand first to prevent double-encoding
Output is ready to paste into templates and attributes
One-click copy and clear controls
100% client-side processing with no uploads or limits
Frequently Asked Questions
Which characters does the HTML Encoder escape?
It escapes the five characters that are significant in HTML markup: the ampersand, less-than and greater-than signs, double quotes, and single quotes. These become &amp; &lt; &gt; &quot; and &#39; respectively.
Why should I encode HTML?
Encoding prevents user-supplied text from being interpreted as markup, which stops broken layouts and cross-site scripting. It is essential when displaying untrusted content inside a web page.
How do I reverse the process?
Use the HTML Decoder to turn entities back into their original characters. The two tools are designed to complement each other.
Is my text kept private?
Yes. Encoding runs entirely in your browser, so the text you paste is never uploaded and there are no usage limits.