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Free HTML Entity Encoder & Decoder - Convert Special Characters

Encode and decode HTML entities instantly. Convert special characters for safe HTML display and prevent XSS attacks.

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HTML Entity Encoder

Encode and decode HTML entities instantly. Convert special characters for safe HTML display and prevent XSS attacks.

HTML / Text
Encoded Entities
About This Tool

What is HTML Entity Encoder?

HTML entities replace reserved and special characters with safe text representations that browsers display as literal characters rather than interpreting them as markup. The HTML Entity Encoder converts characters to entity form - < for <, > for >, & for &, " for the double-quote character - so they appear correctly in rendered HTML without breaking tag structure.

The decoder reverses the process: paste HTML containing entity sequences and the tool converts them back to readable characters. This is needed when reading template output, server logs, or database content where user input was stored in escaped form and needs to be displayed cleanly.

Three encoding modes cover different scenarios. Full encoding converts every character that has a named or numeric HTML entity - useful for generating safe HTML from arbitrary user input. Reserved-only encoding targets just the five characters with special meaning in HTML (&, <, >, double-quote, apostrophe) - the minimum needed to prevent markup injection. Named entity mode uses readable sequences like ©, €, and   where available, falling back to numeric form for any character without a standard name.

Proper HTML entity encoding is a primary defense against XSS (cross-site scripting) attacks. Rendering unsanitized user input directly in HTML allows malicious scripts to execute. The tool supports the full Unicode character set - accented characters, currency symbols, mathematical notation, and characters from any script, not just ASCII.

Features

Powerful Features

Everything you need in one amazing tool

Bidirectional Conversion

Encode characters to entities or decode entities to characters. Switch modes instantly.

XSS Prevention

Encode user input for safe HTML display. Prevent cross-site scripting attacks.

Named & Numeric Entities

Supports &nbsp;, &copy;, &#169;, and &#x00A9; formats. Choose preferred style.

Selective Encoding

Encode all characters or only HTML reserved ones. Customize encoding scope.

Bulk Processing

Process entire HTML documents at once. Convert large amounts of text instantly.

100% Private

Client-side only. Your HTML content never uploaded to servers.

Simple Process

How It Works

Get started in 4 easy steps

1

Paste Text/HTML

Paste text with special characters or HTML with entities. Any amount of content.

2

Choose Direction

Select encode (chars to entities) or decode (entities to chars). Set encoding options.

3

Process Instantly

Tool converts characters or entities. See results immediately with preview.

4

Copy Result

Copy encoded/decoded text to clipboard. Use in HTML, emails, or databases.

Why Us

Why Choose Our HTML Entity Encoder?

Stand out from the competition

Security First

Prevent XSS attacks by properly encoding user input. Essential security practice.

Instant Processing

Convert even large HTML documents in milliseconds. No delays or waiting.

Universal Language Support

Handle any Unicode character. Perfect for international content and symbols.

Visual Preview

See how encoded text will render in browsers. Verify results before using.

Unlimited Usage

Encode/decode unlimited text. No restrictions or usage limits.

Developer Friendly

Clean output ready to paste in code. Works perfectly with all frameworks.

Use Cases

Perfect For

See how others are using this tool

XSS Prevention

Encode user-submitted content before displaying. Prevent malicious script injection.

Email Templates

Encode special characters in HTML emails. Ensure proper rendering across email clients.

Database Storage

Encode text before storing in databases. Prevent SQL and HTML injection issues.

Content Management

Handle special characters in CMS content. Display symbols and foreign characters correctly.

Code Examples

Display HTML/XML code in documentation. Show code without executing it.

SEO & Meta Tags

Encode special characters in meta descriptions. Ensure proper display in search results.

Frequently Asked Questions

Everything you need to know about HTML Entity Encoder

HTML entities are codes that represent special characters. Use them for: 1) Characters with special meaning in HTML (<, >, &, ") to display them literally without being interpreted as code; 2) Characters not on standard keyboards (©, €, ñ); and 3) Preventing XSS attacks by encoding user input. For example, &lt; displays as < without creating an HTML tag.

Named entities use descriptive names (&nbsp; for non-breaking space, &copy; for ©), making code more readable. Numeric entities use character codes (&#169; or &#xA9; for ©) and can represent any Unicode character. Named entities are easier to remember for common symbols, but only a limited set exists. Numeric entities can represent any character but are less readable.

Not always! Only encode characters that could cause issues: HTML reserved characters (<, >, &, ", ') must be encoded when displaying as text. For other special characters (©, €, ñ), you can use entities or Unicode directly if your HTML has proper charset (UTF-8). Encoding everything makes HTML harder to read in source but is safer for untrusted user input.

XSS (Cross-Site Scripting) works by injecting malicious HTML/JavaScript into pages. If you display user input like "<script>alert('hacked')</script>" directly, it executes! But encoding it to "&lt;script&gt;..." makes it display as text instead of executing. Always encode user-generated content before displaying in HTML to prevent attackers from injecting scripts.

Yes! Paste entire HTML documents and the tool decodes all entities at once. This is useful when you receive HTML with entities and want to read the actual characters, or when working with legacy code that over-uses entities. The tool handles mixed content with both named and numeric entities simultaneously.

Never! All encoding and decoding happens entirely in your browser using JavaScript. Your HTML content, user data, or text is processed locally and never uploaded to any server. This makes it completely safe for processing production HTML, customer content, or sensitive data that cannot leave your organization.

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