DEVELOPER TOOLS · LOCAL ONLY
Convert between text and \uXXXX Unicode escape sequences.
Up to 200,000 characters. Astral characters are emitted as surrogate pairs.
Run the tool to see the result
Up to 200,000 characters. Astral characters are emitted as surrogate pairs.
How to use
Turn text into `\uXXXX` form for source files, config, or test data that only accept ASCII, or turn unreadable escapes in existing code back into text. Astral characters such as emoji are emitted as two surrogate pairs and round-trip exactly.
Limits and privacy
Everything runs inside this browser. Your input is never uploaded, stored, or written to the URL or any log.