Unicode Escape Encoder/Decoder
Encode text into \uXXXX Unicode escape sequences, or decode escape sequences back into readable text.
Output
H\u00e9llo, \u4e16\u754c!
What is Unicode Escape Encoder/Decoder?
Unicode Escape Converter provides bidirectional conversion between international text and \uXXXX hexadecimal escape sequences. It encodes non-ASCII characters into 4-digit hexadecimal escapes for safe embedding in JavaScript, TypeScript, JSON, Java, and property files. Characters beyond the Basic Multilingual Plane (> U+FFFF, such as emojis) are automatically converted into UTF-16 surrogate pairs (e.g., \ud83d\ude80).
How to use Unicode Escape Encoder/Decoder
- 1Select Encode to convert text to \uXXXX escapes, or Decode to convert escapes back to text.
- 2Paste your source text or escape sequence into the input area.
- 3Copy the converted result directly with the Copy button.
Key features
Full UTF-16 Surrogate Pair Support
Accurately splits astral code points (> U+FFFF, including emojis) into valid surrogate pairs.
Bidirectional Translation
Switch between encoding international text and decoding \uXXXX hexadecimal sequences to plain text.
ASCII Code Preservation
Leaves standard ASCII characters (0–127) untouched while escaping non-ASCII glyphs.
Client-Side Privacy
Conversions execute strictly in browser JavaScript memory with no data sent to external servers.
Examples & use cases
Encode Accented & Multilingual Text with Emojis
Escapes non-ASCII characters and splits emojis into surrogate pairs
Héllo, 世界! 🚀
H\u00e9llo, \u4e16\u754c! \ud83d\ude80
Decode Unicode Escapes Back to Text
Reconstructs Unicode characters and surrogate pairs
H\u00e9llo, \u4e16\u754c! \ud83d\ude80
Héllo, 世界! 🚀
Frequently asked questions
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