Unicode Codepoint Converter

このツールについて

Explore the full Unicode representation of any character or string across all common encoding formats simultaneously. Enter a character, a U+ codepoint, a decimal number, a hexadecimal value, an HTML entity, or any other supported format — all representations update instantly. Supported formats include: the rendered character itself; the U+ codepoint in standard Unicode notation (e.g. U+0041); the decimal code point (65); hexadecimal (0x41); HTML decimal entity (A); HTML hex entity (A); named HTML entity where one exists (e.g. & for &); CSS content escape value (\0041); URL percent-encoding (%41); UTF-8 byte sequence as hex (e.g. E2 82 AC for €); UTF-16 code unit(s); and the 8-bit binary representation. Multi-character mode breaks a string into its individual Unicode code points — each character is listed in its own row with all representations side by side, making it easy to inspect compound emoji, combining characters, and surrogate pairs. Characters above U+FFFF (emoji and rare CJK characters) show their UTF-16 surrogate pair (high surrogate + low surrogate) and their 4-byte UTF-8 sequence. A Unicode block and category label (e.g. 'Basic Latin', 'Letter, Uppercase') is shown for each code point.

使い方

1. 1 Type or paste a character into the 'Character' field — all other fields update immediately.
2. 2 Alternatively enter a value in any other field (U+ notation, decimal, hex, HTML entity, etc.) to convert from that format.
3. 3 Switch to Multi-character mode to analyze a whole string: each character appears in its own table row.
4. 4 Click any value to copy it to the clipboard.
5. 5 For emoji or characters above U+FFFF, check the UTF-16 surrogate pair and 4-byte UTF-8 sequence in the expanded row.

よくある質問