Similar to 今昔文字鏡

Whitespace character

Combining character

Code page

Currency sign (generic)

Four-corner method

Glyph

Graphic character

Control character

Halfwidth and fullwidth forms

Spelling alphabet

Text file

Braille

Chinese telegraph code

Trigraph (computing)

Null character

Percent-encoding

Bucky bit

Half-width kana

Big5

Code point

Bush hid the facts

Baudot code