HTML Entity Encoder (Convert Special Characters Online)
Need to display raw HTML tags, code snippets, or mathematical symbols on a web page? This HTML Entity Encoder converts characters like <, >, &, ' and " into their corresponding safe HTML entities (<, >, &). This ensures your text renders correctly inside the browser while protecting your application against Cross-Site Scripting (XSS) payload injection.
100% Private & Secure
This tool runs completely inside your browser using client-side WebAssembly and JS. Zero data is ever sent to our servers.
How to use this tool
- Type or paste your raw text, HTML snippet, or code block into the left input box.
- Click the 'Encode Entities' button to instantly convert the text.
- Watch as dangerous or reserved characters are transformed into safe HTML string literals.
- Click 'Copy Output' to grab the encoded string and paste it into your editor.
Example Usage
<h1>Alert</h1>
<h1>Alert</h1>
Salt & Pepper
Salt & Pepper
const foo = "bar";
const foo = "bar";
When to use this tool
- Safely displaying inline code snippets `<pre><code>` on programming blogs or documentation sites.
- Encoding user-generated comments or markdown to prevent execution of XSS vulnerability payloads.
- Generating strict XML or RSS feed payloads that forbid reserved `<` and `&` characters.
- Creating secure templates in older server-side templating languages.
Frequently Asked Questions
What exactly is an HTML Entity?
An HTML entity is a piece of text (a string) that begins with an ampersand (&) and ends with a semicolon (;). They are universally used by web browsers to display reserved characters (which would otherwise be interpreted as HTML markup) or invisible characters (like non-breaking spaces).
Why do I need to encode characters before putting them in HTML?
If you simply write <h1> in your standard HTML code, the browser thinks you are trying to create a Header element and will render large text. If you actually want the literal characters <h1> to visibly appear on the screen, you must encode the brackets as <h1>.
How does this tool process the encoding?
This tool utilizes the native DOM parser built directly into your web browser. This guarantees 100% accurate standard compliance because the browser engine itself is performing the translation. Absolutely no data is sent to a backend server.