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Free HTML Encoder & Decoder – HTML Entity Converter Online

HTML Encoder encodes and decodes HTML entities online for free. Convert special characters to HTML entities.

Common HTML Entities

Click any entity to copy it

How to Use HTML Encoder / Decoder

1

Paste Your Text

Paste the text containing special characters.

2

Encode or Decode

Click Encode to convert to HTML entities, or Decode to reverse.

3

Copy Result

Copy the encoded or decoded text.

Encode and Decode HTML Entities Instantly

When you display user-supplied text inside a web page, certain characters cause problems because the browser treats them as code rather than content. A less-than sign starts a tag, an ampersand begins an entity, and quotes can break out of an attribute. Helperzy HTML Encoder converts these special characters into their safe entity equivalents — < becomes &lt;, > becomes &gt;, & becomes &amp;, and " becomes &quot; — so the text appears exactly as written instead of being interpreted as markup. The decoder reverses the process, turning entities back into normal characters. The most important reason to encode HTML is safety. If you insert raw user input into a page without encoding it, someone could include a script tag or event handler that the browser then runs — the classic cross-site scripting (XSS) vulnerability. Encoding the special characters neutralizes that input so it is shown as harmless text. This is a foundational web security practice, and the tool makes it easy to see exactly what encoded output looks like. Beyond security, developers use HTML encoding to display code samples on a page (so that example markup shows as text rather than rendering), to safely place values inside attributes, and to handle special symbols and accented characters in older systems. Decoding is equally useful when you receive content full of entities and need to read or process the original text — for example, copy from a scraped page or an email template. A practical note on scope and limits. There are named entities like &copy; and &nbsp; and numeric entities like &#169; that represent the same characters in different ways; this tool handles the common set you encounter day to day. Also remember that encoding is context-specific — encoding for HTML text is not the same as encoding for a URL or for JavaScript, so use the right tool for the right context. Encoding alone is not a complete security strategy, but it is an essential layer. All processing happens in your browser, so your text is never uploaded.

Frequently Asked Questions – HTML Encoder / Decoder

Paste your text into Helperzy HTML Encoder and click Encode. All special characters such as <, >, &, and quotes are converted to their HTML entity equivalents like &lt;, &gt;, and &amp;. There is no signup and nothing is uploaded — encoding runs in your browser. Click Decode to reverse the process and turn entities back into normal readable characters.