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Numio

Unicode Escape Converter

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

Mode

Input

7 chars1 lines

Result

Type or paste on the left — the result updates as you type.

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.

Format references

Tool page updated: