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HTML Entity Encoder & Decoder

Encode special characters into safe HTML entities (<, >, &, ") and decode entity strings back into plain text. 100% private and client-side.

Client-Side Privacy Free Forever Mobile & PC
Raw HTML / Text Input173 chars
Encoded Entity Output

Guide to HTML Character Entities & Web Security

Understanding XSS prevention, reserved characters, and entity standards.

HTML5 Reserved Characters

The HTML syntax reserves five primary characters: ampersand (&), less-than (<), greater-than (>), double quote ("), and single quote ('). Failing to escape these characters inside HTML attributes or text nodes allows attackers to inject malicious script tags or attribute handlers.

Client-Side Decoding via the DOM

Our decoder uses browser-native DOM element parsing to unescape every named and numerical entity defined in the HTML5 specification with 100% accuracy.

Our Tool Features

Why developers and engineers prefer this tool for everyday development workflows.

Cross-Device Compatibility

Works seamlessly on all modern desktop, tablet, and mobile browsers including Chrome, Firefox, Safari, Edge on Windows, macOS, Linux, Android, and iOS.

Fast In-Browser Execution

Processes your data in real-time directly inside your browser. No queue wait times, no network round-trips, and zero latency.

100% Client-Side Privacy

Your code, tokens, passwords, and files are never transmitted to any external server or saved in logs. Everything runs locally in memory.

Instant File & Clipboard Input

Supports one-click sample loading, file drag-and-drop, and pasting directly from your clipboard (Ctrl + V) for effortless workflows.

Strict Standards Compliant

Built strictly according to official specifications (RFCs, W3C, ISO, and standard cryptographic algorithms) ensuring accurate output every time.

Unlimited Free Usage

No registration, no accounts, no subscriptions, and no hidden daily quotas. Use this tool as many times as you need without restrictions.

Recent Updates & Improvements

Continuously maintained and improved based on developer feedback.

Client-Side Speed & Performance UpgradeRecent Update

Optimized processing algorithms with Web Workers and native browser APIs (SubtleCrypto, Canvas 2D) for instantaneous zero-latency execution.

Clipboard Paste & Drag-and-Drop AddedFeature Added

Added instant clipboard pasting (Ctrl + V) and drag-and-drop file support to accelerate developer productivity without manual downloads.

Enhanced Mobile & Touch Device ExperienceUI/UX Update

Redesigned responsive touch controls, flexible copy buttons, and camera preview framing for mobile and tablet browsers.

How To Use HTML Entity Encoder Online?

Follow these quick steps to get instant, accurate results in seconds.

1

Paste Raw Text or Entities

Enter your raw code snippets or encoded HTML string into the left editor.

  1. Handles raw markup, symbols, and scripts
  2. Character count tracking
Input StringClient-Side
<script>alert("XSS & Test");</script>
Instant ExecutionReady
2

Select Encode or Decode

Choose Encode (Named, Decimal, Hex) or Decode to convert the text in real-time.

  1. Instant two-way conversion
  2. Option to escape all characters
Entity EngineClient-Side
→ Mapping '<' to '&lt;'
→ Mapping '>' to '&gt;'
→ Mapping '&' to '&amp;'
Instant ExecutionReady
3

Copy Safe Output

Copy the sanitized entity string or plain text directly to your clipboard.

  1. Safe for web injection
  2. One-click copy
Output ResultClient-Side
&lt;script&gt;alert(&quot;XSS &amp; Test&quot;);&lt;/script&gt;
Instant ExecutionReady

Common HTML Entity Mappings

Reference for common characters and their HTML5 representations

Reserved Markup Characters

Critical

Characters that must always be escaped in HTML templates.

Example Syntax
< → &lt;
> → &gt;
& → &amp;
" → &quot;
' → &#39;
Prevents tag breakout and malicious script execution.

Typography & Legal Symbols

Symbols

Standard copyright, trademark, and mathematical symbols.

Example Syntax
© → &copy;
® → &reg;
™ → &trade;
× → &times;
Renders consistently across legacy browsers and encodings.

Our Tool Features

Why developers and engineers prefer this tool for everyday development workflows.

Cross-Device Compatibility

Works seamlessly on all modern desktop, tablet, and mobile browsers including Chrome, Firefox, Safari, Edge on Windows, macOS, Linux, Android, and iOS.

Fast In-Browser Execution

Processes your data in real-time directly inside your browser. No queue wait times, no network round-trips, and zero latency.

100% Client-Side Privacy

Your code, tokens, passwords, and files are never transmitted to any external server or saved in logs. Everything runs locally in memory.

Instant File & Clipboard Input

Supports one-click sample loading, file drag-and-drop, and pasting directly from your clipboard (Ctrl + V) for effortless workflows.

Strict Standards Compliant

Built strictly according to official specifications (RFCs, W3C, ISO, and standard cryptographic algorithms) ensuring accurate output every time.

Unlimited Free Usage

No registration, no accounts, no subscriptions, and no hidden daily quotas. Use this tool as many times as you need without restrictions.

Frequently Asked Questions

Recent Updates & Improvements

Continuously maintained and improved based on developer feedback.

Client-Side Speed & Performance UpgradeRecent Update

Optimized processing algorithms with Web Workers and native browser APIs (SubtleCrypto, Canvas 2D) for instantaneous zero-latency execution.

Clipboard Paste & Drag-and-Drop AddedFeature Added

Added instant clipboard pasting (Ctrl + V) and drag-and-drop file support to accelerate developer productivity without manual downloads.

Enhanced Mobile & Touch Device ExperienceUI/UX Update

Redesigned responsive touch controls, flexible copy buttons, and camera preview framing for mobile and tablet browsers.

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