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Unicode Encoder / Decoder

Convert text to Unicode escape sequences in multiple formats — JavaScript \uXXXX, CSS/HTML \UXXXXXXXX, or U+XXXX code point notation — or decode them back to readable text.

Format:
Plain Text 0 chars
Unicode Escapes 0 chars
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📊 Stats
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Input chars
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Output chars
📖 Unicode Format Reference
JS \u\u0041 = A
CSS/C \U\U00000041
U+ notationU+0041
Hex \x\x41
HTML decA
HTML hexA
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What are Unicode Escape Sequences?

Unicode escape sequences represent Unicode characters using ASCII text, making it safe to include any character in source code, JSON, URLs, and other contexts that may not handle raw Unicode. The format varies by context: JavaScript uses \uXXXX (4 hex digits) for the Basic Multilingual Plane and \u{XXXXX} for supplementary characters; Python and C use \uXXXX and \UXXXXXXXX; CSS uses \XXXXXX.

Frequently Asked Questions

\uXXXX is a programming escape sequence — it tells a parser to treat the following 4 hex digits as a Unicode code point. U+XXXX is simply the standard Unicode consortium notation for referring to a code point in documentation and discussion — it is not valid syntax in most programming languages.
The \uXXXX form is limited to code points U+0000 through U+FFFF (the Basic Multilingual Plane). Characters above U+FFFF — including most emoji and many rare script characters — require the extended \u{XXXXX} syntax in ES6+ JavaScript, or are represented as surrogate pairs (\uD800\uDC00) in older JavaScript.
Use Unicode escapes when you need to include special characters in environments that only support ASCII: JSON strings (which must escape non-ASCII), source code files where the encoding is uncertain, configuration files, or when transmitting text through systems that may corrupt high-byte characters. For modern UTF-8 environments, raw Unicode characters are generally preferred.
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What is Unicode Encoder / Decoder?

Unicode Encoder / Decoder is a free online utility designed to help developers, designers, and technical professionals work more efficiently. This tool runs entirely in your browser — no installation required, no data sent to any server.

How to Use Unicode Encoder / Decoder

  1. Paste or type your input in the editor area above.
  2. Click the action button to process your content.
  3. Copy the output or download the result.

Key Features

  • 100% Free — No registration or payment required.
  • Client-side Processing — Your data never leaves your browser.
  • Instant Results — Get output in milliseconds.
  • No Installation — Works directly in your web browser.
  • Mobile Friendly — Works on phones, tablets, and desktops.

Who Uses Unicode Encoder / Decoder?

This tool is widely used by web developers, software engineers, data analysts, students, and IT professionals who need a quick and reliable way to process data without setting up complex software environments.

Frequently Asked Questions

Is Unicode Encoder / Decoder free to use?
Yes, Unicode Encoder / Decoder is completely free. There are no hidden charges, no subscription fees, and no account required.
Is my data safe when using Unicode Encoder / Decoder?
Absolutely. All processing happens locally in your browser. No data is uploaded to any server, making it completely private and secure.
Can I use Unicode Encoder / Decoder on mobile devices?
Yes, Unicode Encoder / Decoder is fully responsive and works on all modern browsers and devices including smartphones and tablets.
Do I need to install anything to use Unicode Encoder / Decoder?
No installation is required. Simply open the page in your browser and start using it immediately.
How accurate is Unicode Encoder / Decoder?
Unicode Encoder / Decoder uses industry-standard algorithms to ensure accurate and reliable results every time.