HTML Entity Encoder & Decoder

100% In-Browser & Private

Safely encode special characters into HTML entities to prevent XSS vulnerabilities, or decode escaped HTML strings back to readable characters.

About HTML Entity Encoder & Decoder

HTML entity encoding replaces reserved characters like <, >, &, ", and ' with their corresponding character entities (such as &lt;, &gt;, &amp;, &quot;). This prevents web browsers from interpreting user-supplied text as markup, protecting applications against Cross-Site Scripting (XSS) attacks and rendering issues.

Key Features & Capabilities

Instant two-way HTML entity encoding and decoding
Comprehensive entity support including XML special characters and accented characters
Full client-side privacy without transmitting input data
Clean side-by-side layout with quick copy controls

How to Use This Tool

  1. 1

    Paste text

    Paste raw text or HTML in the input field to encode, or paste entity-encoded text to decode.

  2. 2

    Select action

    Type or edit in either the input or output textarea to see real-time encoding or decoding.

  3. 3

    Copy output

    Click copy to copy the escaped or unescaped HTML entities.

Frequently Asked Questions

Why do I need to encode HTML characters?

Encoding special characters prevents web browsers from executing malicious scripts injected by users, neutralizing Cross-Site Scripting (XSS) vulnerabilities.

Which characters are encoded by default?

Standard reserved characters include & (&amp;), < (&lt;), > (&gt;), " (&quot;), and ' (&#39;), as well as unicode/special symbols.

Client-Side Security Guarantee: All operations are processed locally in your browser sandbox using web standards. We never record, send, or store your code, data payloads, or tokens on any server.