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Unicode Escape Converter

Encode text as UTF-16 Unicode escape sequences or decode backslash-u escapes, including supplementary characters.

Convert in your browser · No sign-up

Encoding uses four-digit UTF-16 escapes and surrogate pairs. Decoding also accepts code-point escapes such as \u{1F44B}; unknown escapes are rejected.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

Result

Add your input or load an example, then run the tool. Your result will appear here.

How to use

  1. Encode text as UTF-16 Unicode escape sequences or decode backslash-u escapes, including supplementary characters.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

あ → \u3042

Details and limitations

Text stays in your browser; it is not sent to a conversion server.

Format references

Tool page updated: