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Unicode Info

Analyze Unicode characters: codepoint, category, block, UTF-8/UTF-16 encodings, HTML entity.

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Unicode Character Info — How It Works

The Unicode Character Info tool provides comprehensive analysis of any Unicode character. Whether you are debugging text encoding issues, working on internationalization (i18n), or simply curious about how characters are represented in different systems, this tool gives you everything you need in one place.

Simply type or paste one or more characters to instantly see detailed information for each one. The tool displays the codepoint in standard U+XXXX notation, the general category (Letter, Number, Punctuation, Symbol, Separator, Mark, or Control), and the Unicode block the character belongs to (such as Basic Latin, Latin Extended, Greek, Cyrillic, Arabic, CJK Unified Ideographs, Emoticons, and over 40 other blocks).

For encoding details, the tool shows the UTF-8 representation as hexadecimal bytes (showing how many bytes each character uses — from 1 byte for ASCII to 4 bytes for emoji), the UTF-16 representation including surrogate pair values for characters in the astral planes (codepoints above U+FFFF like emoji), HTML entities in both decimal and hexadecimal formats for use in web pages, CSS escape sequences for use in stylesheets and content properties, and JavaScript escape sequences using both the \uXXXX format for BMP characters and the \u{XXXXX} format for supplementary characters.

You can also search by codepoint directly — enter U+0041 to find the letter A, U+1F600 to find the grinning face emoji, or any valid Unicode codepoint up to U+10FFFF. Multiple characters can be analyzed simultaneously by pasting a string. The tool handles everything from basic ASCII to complex emoji sequences, accented characters, mathematical symbols, and CJK ideographs. All processing happens entirely in your browser using JavaScript built-in Unicode support — no data is ever sent to external servers, ensuring complete privacy.

Frequently Asked Questions

What is a Unicode codepoint?
A codepoint is the unique number identifying each character in the Unicode standard, shown as U+XXXX. For example, the letter A is U+0041 and the 😀 emoji is U+1F600.
Does the tool support emoji and CJK characters?
Yes. The tool supports the entire Unicode range, including emoji, Chinese/Japanese/Korean (CJK) characters, accented letters, mathematical symbols and more.
What's the difference between UTF-8 and UTF-16?
UTF-8 uses 1 to 4 bytes per character (more efficient for ASCII/Latin), while UTF-16 uses 2 or 4 bytes (surrogate pairs for codepoints above U+FFFF). The tool shows both encodings.