JavaScript Unicode Escape Converter

Convert text to JavaScript Unicode escape forms and decode \uXXXX, \u{...}, and \xNN sequences, including supplementary code points.

JavaScript escape forms

This tool distinguishes three JavaScript string forms: \xNN for a byte-sized code unit, \uXXXX for a UTF-16 code unit, and \u{1F600} for a Unicode code point. Characters outside the Basic Multilingual Plane can be represented as one code-point escape or as a UTF-16 surrogate pair.

中 → \u4e2d
😀 → \u{1f600}
\uD83D\uDE00 decodes as the same emoji when the pair is preserved.

Review before copying

Escaped text is still text, not encryption. Confirm whether the receiving parser accepts code-point escapes; JSON, older JavaScript runtimes, Java properties files, and regular-expression literals do not all support the same syntax.

Usage boundaries and result checks

JavaScript Unicode Escape Converter is for this task: Convert text and JavaScript Unicode escapes, including code-point, UTF-16, and hexadecimal forms. It runs in the browser; start with a short, non-sensitive sample and confirm the behavior before processing more data.

Best use

Use it for a focused JavaScript Unicode Escape Converter task when a quick browser workbench is appropriate.

Input

text, an encoded string, or the data format named by the tool

Output

an encoded, decoded, or compatibility-check result

Before reuse

For JavaScript Unicode Escape Converter: Confirm the character set, byte boundary, and target protocol. Encoding is not encryption. See the test method.