Unicode Escape Converter

The Unicode Escape Converter turns plain text into JavaScript and JSON-style Unicode escape sequences and converts those escapes back into readable characters.

Encoding rewrites each character as a \uXXXX sequence — for example "A" becomes \u0041 and "é" becomes \u00e9 — which is the safest way to embed non-ASCII text inside source code, JSON strings or config files that may pass through systems with shaky encoding support.

An option lets you escape only the non-ASCII characters, keeping ordinary letters readable while still protecting accented letters, symbols and emoji.

Astral characters such as emoji are handled correctly: a grinning face is emitted as the surrogate pair \ud83d\ude00, exactly the way JSON.stringify would produce it, and decoding recombines those pairs back into the original code point.

The decoder is flexible too — it understands the classic \uXXXX form, the ES6 \u{...} braces and the shorter \xXX hex escape — so it can clean up escapes from almost any source.

Encode and decode are a single round-trip apart, so you can verify your data survives the journey unchanged.

Everything runs locally in your browser; your text is never uploaded, logged or stored, and the tool works offline once the page has loaded.