📝 HTML Entity Encoder & Decoder

Encode and decode HTML entities. Prevent XSS, display code safely.

The HTML Entity Encoder & Decoder converts special characters like ampersands, angle brackets, and quotes into safe HTML entities and back again. Paste raw HTML or text, click Encode to obtain entity-safe markup for embedding in web pages, or Decode to read encoded strings. Input is limited to 1 MB for responsive browser-side processing.

📌 Embed This Tool

Add the HTML Entity Encoder & Decoder to your website for free. Just copy and paste the code below.

<!-- HTML Entity Encoder & Decoder — Embed by ToolStand -->
<div style="position:relative;width:100%;max-width:100%;overflow:hidden;">
  <iframe src="https://toolstand.io/tools/html-entity-encoder/embed.html" 
    width="100%" height="500" frameborder="0"
    style="border:1px solid #e2e8f0;border-radius:8px;background:#fff;"
    loading="lazy" 
    title="HTML Entity Encoder & Decoder | ToolStand"
    allow="clipboard-write"
    sandbox="allow-scripts allow-same-origin allow-popups allow-forms">
  </iframe>
</div>

📋 When to Use the HTML Entity Encoder & Decoder

The HTML Entity Encoder & Decoder is ideal when you need to convert between formats or units quickly — whether you're reformatting data for a different tool, preparing content for a client, or just trying to make sense of incompatible file types. Use it when working remotely without access to desktop software, when sharing screens in a meeting and need a fast conversion, or when you want to avoid uploading sensitive files to unknown servers. Everything processes in your browser for maximum privacy.

⚙️ How the HTML Entity Encoder & Decoder Works

The HTML Entity Encoder & Decoder processes your input using conversion algorithms that run entirely in your browser. When you paste or upload content and select the output format, JavaScript parses the input, transforms it using format-specific logic (encoding, decoding, parsing, serializing), and produces the converted output. For file conversions, all processing uses browser-native APIs and JavaScript libraries loaded from CDN — your files are never uploaded to any server. The entire pipeline from input to output stays on your device.

How to Use the HTML Entity Encoder & Decoder

Paste your HTML or text — enter any content containing special characters like less-than, greater-than, ampersand, or quotes.
Click Encode — converts special characters to their HTML entity equivalents so they display safely in HTML without being interpreted as markup.
Click Decode — reverses the process, turning entities back into readable characters. Useful for reading encoded source code.
Copy the result — paste the encoded output into your HTML source to safely display code snippets, or use the decoded output to read encoded content.

Frequently Asked Questions

Why do I need to encode HTML entities?

If you display user-generated content on a webpage, raw script tags could execute malicious code (XSS attacks). Encoding converts dangerous characters to safe display text. It's also essential for showing HTML code examples in tutorials and documentation.

What characters get encoded?

The encoder handles: less-than, greater-than, ampersand, double quote, and single quote characters. These five cover the most common XSS vectors and markup-breaking scenarios.

What's the difference between encoding and escaping?

They're similar concepts. HTML entity encoding converts characters to named or numeric entities. Escaping more broadly refers to making any string safe for a specific context (HTML, JavaScript, SQL, URLs). This tool focuses on HTML entity encoding specifically.

When should I decode instead of encode?

Use decode when you have HTML source with encoded entities and need to read the original text — for example, debugging scraped content, reading minified HTML, or recovering text from encoded API responses.