Skip to content
CrateX.app logo

CrateX.app

HTML Escape/Unescape

HTML Escape/Unescape

HTML Escape/Unescape: Supports HTML entity escaping and unescaping, handling special characters and tags. Auto-detects named and numeric entity formats, prevents XSS attacks, suitable for displaying user input, code examples, and secure content processing.
HTML Escape/Unescape

Quick Start

1
Enter content (HTML or already‑escaped text) in the textbox
2
Choose Encode or Decode
3
Click the button to convert; the result appears in the same textarea
4
Click Copy to reuse the result

Common Scenarios

User Comments

Escape user-submitted comments to prevent XSS attacks

Blog Posts

Display HTML code examples in articles

Forum Posts

Safely display user-generated content

Chat Messages

Prevent malicious code spread through chat features

Form Data

Process and display form submission data

Code Display

Show HTML/JavaScript code snippets on web pages

Extended workflow

html entities, escape html, and unescape html can be handled in the same review flow, so you can verify results before copying or exporting.

Escaping Rules & Entities

Common characters: < > & " ' (slash / is generally not required; context‑dependent)
Entity Format: Special characters are converted to &entity; or &#code; format, e.g., < becomes < or <
Attribute Escaping: Quotes convert to ", protecting HTML attribute values
Script Protection: <script> tags automatically escaped to prevent JavaScript injection
Write <div> as &lt;div&gt; to avoid being parsed by the browser

Usage Advice

Context-aware Escaping: Choose appropriate escaping strategy based on output location
Server-side Processing: Critical security escaping should be done server-side
Double Check: Verify output after escaping to ensure nothing is missed
Use Libraries: Production environments should use mature escaping libraries instead of manual processing
Preview Check: Preview actual display in browser console after escaping

Limitations & Compatibility

Not a sanitizer: does not remove scripts/events/unsafe protocols; use with content sanitization
Incomplete Protection: Escaping alone cannot prevent all XSS, combine with other security measures
Context Dependent: Different locations require different escaping strategies (HTML content, attributes, JavaScript, CSS)
To keep the page responsive, very large text may be processed more simply. Consider splitting

Session Controls

You can replace, clear, and re-run the current content at any time before exporting the final result.

FAQ

5

Continue with these related tools for the next step.