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JavaScript Escape/Unescape Tool

JavaScript Escape/Unescape Tool

Description & Learning Section

JavaScript escaping refers to converting special characters (like quotes, newlines, and Unicode symbols) into escape sequences so that they can safely appear inside JavaScript strings without breaking the syntax or behavior of your script.

This tool is essential when embedding user-generated text, dynamic templates, or data inside JS code. It prevents bugs and XSS vulnerabilities by ensuring that characters like quotes (', ") and backslashes (\) are correctly escaped.

✔️ Use Cases
  • Inserting user-generated content safely into JavaScript
  • Preparing localized strings or templates for JS-based rendering
  • Creating bookmarklets or inline JavaScript with string content
  • Debugging or decoding already-escaped JavaScript strings

Example Input (Raw):

Line 1: "Click here"
Line 2: It’s a trap!
Unicode: ✓ ✔ ✕
    

Escaped Output:

Line 1: \"Click here\"\nLine 2: It\u2019s a trap!\nUnicode: \u2713 \u2714 \u2715
    

Unescaped Output:

Line 1: "Click here"
Line 2: It’s a trap!
Unicode: ✓ ✔ ✕
    

This tool handles escaping and unescaping of:

  • Quotes (', ")
  • Backslashes (\\)
  • Newlines, tabs, and whitespace characters
  • Unicode characters (e.g., \u2713 = ✓)

Escaping is essential when building dynamic JavaScript applications, rendering content in script tags, or working with JSON-like data inside code. Always unescape content before displaying it for debugging or end-user visibility.