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HTML Entity Encoder / Decoder
Safely encode reserved HTML characters into entities (like < or >) to prevent XSS issues, or decode entities back into plain text. 100% client-side processing.
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How Does HTML Entity Encoding Work?

HTML entity encoding replaces reserved characters (such as <, >, &, ", and ') with their corresponding character entity references (e.g., &lt;, &gt;, &amp;). This prevents browsers from interpreting input strings as executable markup or scripts.

Common Use Cases for Developers

  • Preventing XSS (Cross-Site Scripting): Sanitize user-submitted inputs before displaying raw values inside HTML templates or code snippets.
  • Displaying Raw Code in Tutorials: Safely render raw HTML tags, code snippets, or XML blocks within blog posts and documentation without triggering browser parsing.
  • Cleaning Legacy Web Data: Convert legacy HTML entities back into readable plain text strings when processing web scraper data.

100% Client-Side Privacy

Your input data stays entirely inside your browser. All conversion operations use native browser DOM parsers locally on your machine—no data is transmitted over any network.

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