HTML Entity Encoder/Decoder

Input Text
Encoding Options
Encoded Result
0
Original Length:
0
Encoded Length:
0
Size Change:
0
Characters Encoded:
Input HTML Entities
Decoding Options
Decoded Result
0
Entities Found:
0
Decoded Length:
0
Size Change:
0%
Compression Ratio:
Common HTML Entities
Entity Name Example Description Numeric Code Hex Code
Special Characters
Common Use Cases and Examples
Encoding Text to HTML Entities:
HTML Tags: <div> → &lt;div&gt;
Special Characters: © 2024 → &copy; 2024
Mathematical: α + β = γ → &alpha; + &beta; = &gamma;
Decoding HTML Entities to Text:
Named Entities: &lt;div&gt; → <div>
Numeric Entities: &#169; 2024 → © 2024
Hex Entities: &#x3B1; + &#x3B2; → α + β
Online HTML Encoder/Decoder

About HTML Entity Encoder

What are HTML Entities?

HTML entities are special character sequences that represent reserved characters, symbols, and special characters in HTML. They allow you to display characters that might otherwise be interpreted as HTML markup or that aren't available on all keyboards.

Common Use Cases:
  • Web Development: Safely display HTML code in web pages without it being interpreted as markup
  • Content Management: Store and display special characters in databases and content management systems
  • Email Encoding: Ensure special characters display correctly in email clients
  • Data Sanitization: Prevent XSS attacks by encoding user input
  • International Content: Display characters from different languages and scripts
  • Mathematical Content: Display mathematical symbols and equations
  • SEO Optimization: Properly encode special characters in URLs and meta tags

About HTML Entity Decoder

Entity Types:
  • Named Entities: Human-readable names like &amp; for &
  • Numeric Entities: Decimal numbers like &#38; for &
  • Hexadecimal Entities: Hex numbers like &#x26; for &
SEO Benefits:
  • Proper encoding ensures search engines can correctly index your content
  • Prevents broken links and malformed URLs
  • Improves accessibility for screen readers and assistive technologies
  • Ensures consistent display across different browsers and devices
Pro Tip: Use named entities for common characters (like &, <, >) and numeric entities for less common or special characters. This improves readability and maintainability of your code.
Official Documentation & Resources
Official Standards:
Trusted Resources:

Online HTML Entity Encoder

Our comprehensive HTML entity encoder tool provides professional-grade encoding capabilities for web developers, content creators, and system administrators. This advanced tool supports multiple entity formats including numeric entities ({), named entities (&), hexadecimal entities ({), and decimal entities, ensuring compatibility with all HTML standards and browser implementations.

HTML entity encoding is essential for displaying special characters, symbols, and international text safely in web applications. It prevents XSS attacks, ensures proper character rendering across different browsers and devices, and maintains data integrity when working with non-ASCII characters. Our tool handles complex encoding scenarios including mixed entity types, preservation options, and real-time validation.

Online HTML Entity Decoder

The HTML entity decoder tool instantly converts encoded HTML entities back to their original readable format. Perfect for developers debugging encoded content, content managers reviewing encoded text, and anyone working with HTML entities from web scraping, email content, or system logs. Our decoder supports automatic entity type detection and provides detailed validation.

Advanced features include automatic entity type detection, comprehensive error handling, detailed character analysis, and support for multiple entity formats. The tool validates decoded output and provides statistics including original vs decoded length comparisons, entity counts, and format compliance checks to ensure data integrity and proper decoding.

Common Use Cases and Examples

Common applications include web content creation, form data processing, email content encoding, international character support, security implementations, data serialization, and cross-platform compatibility. The tool provides real-time encoding/decoding with detailed statistics including length comparisons, compression ratios, and validation checks.

Technical Standards and Best Practices

Our tool implements industry-standard HTML entity encoding protocols including HTML5 specifications, XML entity standards, and various web encoding guidelines. For comprehensive information about HTML entity standards and best practices, visit the official specifications and documentation.

Useful Resources: HTML5 specification, XML entity reference, and Wikipedia HTML entities article.

Frequently Asked Questions

An HTML entity is a way to represent special characters, symbols, and non-ASCII characters in HTML documents using predefined names or numeric codes. For example, &amp; represents the ampersand (&) character.

Use HTML entities when you need to display special characters that might be interpreted as HTML markup, when working with international characters, or when you want to ensure consistent display across all browsers.

Named entities use predefined names (like &amp;), numeric entities use decimal numbers (like &#38;), and hexadecimal entities use hex numbers (like &#x26;). All represent the same character but with different syntax.

HTML entity encoding helps prevent XSS attacks by ensuring that special characters are not interpreted as HTML markup. However, it should be used as part of a comprehensive security strategy.

Modern browsers support all standard HTML entities, but some older browsers may have limited support for certain named entities. Numeric entities generally have better compatibility.

The tool supports Unicode characters through UTF-8 encoding and provides appropriate HTML entity representations for characters that need to be encoded.

How to Use the HTML Entity Encoder/Decoder

Encoding Text to HTML Entities

  1. Enter the text you want to encode in the "Input Text" field
  2. Select the appropriate entity type from the dropdown menu
  3. Choose preservation options if needed (whitespace, newlines, quotes)
  4. Click the "Encode to HTML Entities" button to process your input
  5. Copy the encoded result from the output field

Decoding HTML Entities to Text

  1. Paste the HTML entities in the "Input HTML Entities" field
  2. Choose the appropriate decode type or let the tool auto-detect it
  3. Select preservation options if needed
  4. Click the "Decode HTML Entities" button to convert back to text
  5. Review the decoded result and validation status