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How to Use

  1. 1

    Choose Operation Type

    Select "Encode to HTML Entities" to convert special characters to entities, or "Decode HTML Entities" to convert entities back to readable text.

  2. 2

    Enter or Upload Text

    Paste your text in the input field or upload a file (supports .txt, .html, .xml, etc., up to 10MB). You can also load a sample to see how it works.

  3. 3

    Configure Options (Optional)

    Click "Show Options" to configure encoding type, control which characters to encode, add custom entities, and enable strict mode or other advanced settings.

  4. 4

    Process and Review

    Click the encode or decode button. Review the output with color-coded statistics showing entities count, processing time, and encoding ratio.

  5. 5

    Export Results

    Copy the output to clipboard or download as a timestamped file. Your conversion is automatically added to the history for quick reference.

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Frequently Asked Questions

What are HTML entities and why do I need them?
HTML entities are special codes used to display characters that have special meaning in HTML (like <, >, &, quotes) or cannot be directly typed (like ©, ®, €). They prevent parsing errors, ensure proper character display, and protect against XSS attacks by safely handling user input.
How do I encode text to HTML entities?
Paste your text into the input field, select "Encode to HTML Entities", choose your encoding type (HTML, XML, numeric, or named), and click the encode button. The tool will convert special characters to their HTML entity equivalents (e.g., & becomes &amp;).
How do I decode HTML entities back to text?
Paste your HTML entity text into the input field, select "Decode HTML Entities", and click the decode button. The tool will convert all HTML entities back to their original characters, supporting named (&amp;), numeric (&#38;), and hex (&#x26;) formats.
What types of HTML entities are supported?
Our tool supports all HTML5 entities (2,000+) including: named entities (&amp;, &lt;, &gt;, &copy;), numeric entities (&#38;), hex entities (&#x26;), and custom entities you define. It handles symbols, mathematical operators, currency symbols, and special characters from various languages.
Why would I need to encode HTML entities?
HTML entity encoding is essential for: 1) Web security - preventing XSS attacks by sanitizing user input, 2) Correct display - ensuring special characters render properly across browsers, 3) Data integrity - preserving special characters in HTML content, 4) Cross-platform compatibility - ensuring content works everywhere.
Can I define custom HTML entities?
Yes! Use the Custom Entities field to define your own mappings. Enter one per line in format: character=entity (e.g., @=at or #=hash). This is useful for specialized characters or domain-specific abbreviations that you frequently use.
What is the difference between encoding types?
HTML entities use named references (&amp;), XML uses strict XML entities, numeric uses decimal codes (&#38;), and named uses only named entities. HTML is most common, numeric works universally, XML is stricter, and named is most readable. Choose based on your use case and compatibility requirements.
Is my data safe when using this tool?
Absolutely! All encoding and decoding happens entirely in your browser using client-side JavaScript. No text is sent to servers, uploaded, or stored. This ensures complete privacy for sensitive data, proprietary code, or confidential content.