Decode JavaScript escape sequences

Decode JavaScript escape sequences back into their represented text.

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ToolJavaScript Unescape
Input
Output
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Preview

How it works

JavaScript escape sequences are parsed into their represented code units or code points, including hexadecimal, Unicode, and control escapes. The parser treats escape syntax as source notation and does not execute the resulting text.

  • ECMAScript supports legacy and modern escape forms for source compatibility.

Worked example

Unescape String
Convert JavaScript escape sequences back to readable text
Input
											Hello\nWorld\t!
Output
												Hello
World	!

When to use this

Source fixtures, serializers, and debugging tools decode JavaScript literals.

Edge cases

  • A malformed hexadecimal escape cannot consume arbitrary digits.
  • Surrogate pairs can represent one astral character.
  • Unescaping source text does not make it safe for HTML or SQL.

References