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Unicode Escape

Escape text to \uXXXX and back.

Text

Escaped

Escape ASCII too

info

Escapes every non-ASCII character to a \u sequence for safe embedding in JSON or source, and reverses it. Astral characters become surrogate pairs, as JavaScript stores them.

Other tools

Encode and decode Base64, including Unicode text.

Percent-encode strings and split query parameters.

Escape markup so it shows up as text.

Read the header and payload of a token.