文字コード変換
Type any text to inspect each character's code point, UTF-8 bytes, and HTML entity.
HU+0048H48
eU+0065e65
lU+006Cl6c
lU+006Cl6c
oU+006Fo6f
U+0020 20
👋U+1F44B👋f0 9f 91 8b
U+0020 20
世U+4E16世e4 b8 96
界U+754C界e7 95 8c
