Convert tools

Unicode Escape Converter

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

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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.

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

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

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

FAQ

Unicode Escape Converter — What are the supported inputs and limits?

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

Format references

Tool page updated: