HTML Entity Encoder & Decoder

HTML Entity Encoder & Decoder - Encode/Decode HTML Entities Online

Encode or Decode HTML Entities

We designed this tool to help you instantly convert special characters into their corresponding HTML entities and back again. Whether you need to safely display code snippets on a webpage or clean up scraped content, our HTML entity encoder ensures your text renders exactly how you intend.

Simply enter your text below to get started. You can swap between encoding and decoding modes to handle tasks like fixing broken character references or preparing text for email templates.

*(Tool Interface Placeholder)*

• Input: Paste text or code here...
• Controls: Encode Decode
• Output: Result appears here...

How to Use the Tool

We have made the process as seamless as possible so you can get back to coding.

1. Paste your input: Drop the string or code snippet you want to convert into the input box.
2. Choose your action: Select Encode to turn characters like < and > into safe HTML entities. Select Decode to revert entities back to readable text.
3. Copy the output: Click to copy the result and paste it directly into your project.

Jump to Examples

What are HTML entities (character references)?

An HTML entity, technically known as a character reference, is a piece of code used to represent a character in HTML. We use them for two main reasons: to display "reserved" characters that HTML uses for syntax (like brackets) and to display characters that are not present on a standard keyboard.

Types of character references

There are a few ways to write these references, and our tool handles them all.

• Named Character References: These use a readable keyword. For example, < represents the "less than" symbol (<) and © represents the copyright symbol ().
• Numeric Character References: These rely on the character's unique position in the Unicode standard. They can be written in decimal (e.g., <) or hexadecimal (e.g., <). While named entities are easier to remember, numeric entities are better for obscure characters that don't have a standard name.

Do you need the semicolon?

Yes, we strongly recommend it. While browsers are smart enough to guess what you mean if you write &copy (without the semicolon), it is not valid HTML syntax. Leaving off the semicolon can cause rendering issues, especially if the entity is immediately followed by other text. Always use the full syntax - like © - to avoid ambiguity.

Common entities cheat sheet

Here are the most common characters developers need to escape, known as the "escape set."

*Note regarding  : This entity creates a space that will not break into a new line. It behaves differently than a standard space bar press, which browsers often collapse.*

When you should encode vs decode

Knowing when to apply these transformations is key to a clean workflow.

You should Encode when:

• You want to display HTML code examples on a webpage (so the browser doesn't try to run the code).
• You are inserting user-generated text into a page and want to prevent formatting errors.
• You are working with XML or strict XHTML templates.

You should Decode when:

• You are cleaning up text scraped from a website that is full of   and & tags.
• You are reading API responses that return encoded strings.
• You are migrating content from an old CMS to a new one and need raw text.

Security note

HTML entity encoding is a critical part of web security, specifically for output encoding. It helps prevent Cross-Site Scripting (XSS) attacks by converting special characters into safe text formats. This stops the browser from interpreting malicious user input as executable code.

However, please remember that entity encoding alone is not a universal sanitizer. The correct encoding method depends entirely on where the data is placed - whether it is in the HTML body, a JavaScript variable, or a URL parameter. Always ensure you are using the right context for your security strategy.

Troubleshooting

I see < on my screen instead of <. You likely have a "double encoding" issue. This happens if text was encoded once, and then encoded again by a CMS or script. Try using our tool to decode the text twice.

The entity didn't decode. Check for a missing semicolon or a typo in the entity name. If you are using a named entity that the browser doesn't recognize, try switching to the numeric decimal version.

Spaces disappeared or text won't wrap. You might be dealing with   (non-breaking spaces). These look like spaces but force the text to stay on one line. Decode your text to convert them into standard spaces.

It broke my URL. You likely needed URL encoding, not HTML entity encoding. HTML entities (like &) are for page content, while percent-encoding (like %20) is for address bars.

Frequently Asked Questions

What is an HTML entity / character reference?

It is a code used to represent a character that has special meaning in HTML (like <) or is not available on a standard keyboard.

What characters should I always encode in HTML?

At a minimum, you should always encode the "big five": <, >, &, ", and '. This ensures your HTML structure remains intact.

Named vs numeric entities - which should I use?

Named entities (like ©) are easier to read and remember. Numeric entities (like ©) are more reliable for rare characters because they refer directly to Unicode code points.

Do I need the semicolon at the end of an entity?

Yes. While some browsers forgive the mistake, the HTML standard requires a semicolon to correctly terminate the reference.

Why does   behave differently than a space?

  stands for "Non-Breaking Space." It prevents an automatic line break at its position. Browsers also treat multiple standard spaces as a single space, but they will render every single   you type.

Why am I seeing & everywhere?

This is usually a sign of double-encoding. Your text was encoded, and then the ampersand inside that code was encoded *again* (turning & into &).

Is HTML entity encoding enough to prevent XSS?

Not always. While it is effective for data placed inside HTML tags, it may not protect data placed inside script tags or event handlers. Context matters.

What's the difference between HTML encoding and URL encoding?

HTML encoding is for displaying text on a webpage safely. URL encoding converts characters into a format that can be transmitted over the Internet in the URL bar (e.g., converting a space to %20).

Related Tools:

• URL Encoder/Decoder - Fix broken links and query parameters.
• JSON Formatter - Clean and validate your JSON data.
• Base64 Encoder/Decoder - Convert data to Base64 strings.