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Unicode Escape Converter - Encode & Decode \uXXXX Sequences Online

Convert text characters into \uXXXX Unicode escape notation and decode Unicode escape sequences back into readable text.

This tool runs in your browser.

Text is processed locally.

How to use

  1. 01Paste text.
  2. 02Escape or decode it.
  3. 03Copy the result.

FAQ

Why are \uXXXX escape sequences utilized in software engineering?

They allow arbitrary international characters to be safely embedded inside 7-bit ASCII files, preventing character encoding corruption.

Does the tool handle supplementary plane emojis correctly?

Yes. Emojis and characters beyond U+FFFF are correctly converted into standard UTF-16 surrogate pairs or ES6 unicode escape format.

Is my input source code processed privately?

Yes. All string parsing executes client-side in your local browser sandbox without transmitting data across external connections.