📁 Unicode 字符信息查询

输入任意字符查看其 Unicode 编码信息，或输入码点（十六进制）进行查询。支持按码点范围浏览。

🔍 查询字符

输入一个字符或十六进制码点（如 U+4E2D、0x4E2D）

📚 按码点范围浏览

起始码点（十六进制，如 4E00）

结束码点（十六进制，如 4EFF）

📖 常用 Unicode 范围

U+0041 - U+005A

拉丁大写字母 (A-Z)

U+0061 - U+007A

拉丁小写字母 (a-z)

U+4E00 - U+9FFF

CJK 统一表意文字

U+3000 - U+303F

CJK 符号和标点

U+FF00 - U+FFEF

全角/半角形式

U+1F300 - U+1F9FF

杂项符号和 Emoji

U+0600 - U+06FF

阿拉伯语

U+3040 - U+309F

平假名

U+30A0 - U+30FF

片假名

U+AC00 - U+D7AF

韩文音节

U+2150 - U+218F

数字形式

U+2100 - U+214F

字母式符号

Unicode 编码简介：Unicode 为每个字符分配唯一的码点（Code Point），范围 U+0000 至 U+10FFFF。UTF-8 是可变长度编码（1-4 字节），UTF-16 为 2 或 4 字节。

平面说明：BMP（基本多语言平面）U+0000 至 U+FFFF 包含常用字符；辅助平面 U+10000 以上包含 Emoji、古文字等。

❓ Frequently Asked Questions

Type or paste a character into the search box. The tool shows its code point (U+XXXX), name, Unicode block, category (letter/symbol/punctuation/etc.), UTF-8/UTF-16 byte count, HTML entity, decimal/hex, and more.

A unique number Unicode assigns to every character across all writing systems. Written as U+ followed by a hex number, e.g. U+4E2D is "中". Range: U+0000 to U+10FFFF (theoretical maximum).

UTF-8 uses 1-4 bytes variable-length (1 for ASCII, 3 for Chinese), backward-compatible with ASCII. UTF-16 uses 2 or 4 bytes (2 for BMP), more space-efficient but less friendly to ASCII. Modern Web is essentially all UTF-8.

HTML entities are character references starting with & and ending with ;, e.g. 中 or 中 both mean "中". Used to insert special characters in HTML, avoiding encoding issues. Named entities like & (&) exist for common characters.