U+0000–U+007F
Regional indicator matrix
Every pair of regional indicator letters, A–Z down and across. The 258 pairs Unicode recommends for interchange are lit; the rest are legal to type and render as bare letters. Row is the first letter.
Build a sequence
Subdivision flags append ISO 3166-2 letters as tag characters after a black flag, closed by a cancel tag. Keycaps wrap a character in a variation selector and a combining enclosing keycap.
Every code point at once
One pixel per code point, 256 across. Each tile is a plane of 65,536. Colour is the general category. Hover to identify, click to open it in Browse.
Decode
Paste text to take it apart, or paste escapes — U+1F600, \u00e9,
☃, %E2%98%83, raw UTF-8 hex — and press Decode to rebuild the string.
Stack
Combining marks attach to the character before them. Pick a base, pile marks on, and watch the cluster stay one grapheme no matter how many code points go in.