Ciphers with letters only

Limited subset of alphabet

Sort	Cipher	Link	Hint
Only A or B	Bacon
A, D, F, G, V & X	ADFVGX Cipher
A, D, F, G & X	ADFGX Cipher
E missing	Dvorak decoder
J or Q missing	Polybius Square. Bifid or Trifid Cipher
GA BU ZO MEU	Shadok numbers
Syllables de,da,do,di,be,ba,bo,bi,ke,ka,ko,ki,he,ha,ho,hi.	Bibi-binary Code	Bibi-binary Code
9 distinct characters (at most)	Collon Ciper	Collon Cipher

Full subset of alphabet

Sort	Cipher	Link	Hint
None	Caesar shifts (All ROTs)	Caesar	Coincidence index of plain text, Shift in frequency analysis
None	Alphabetical Substitution		Coincidence index of language
None	Atbash	Atbash	Coincidence index of language
None	Caesar box	Caesar box	Coincidence index of plain text
None	Double Transposition Cipher	Double Transposition Cipher	Coincidence index of plain text
None	Enigma	Enigma
None	Fractionated Morse Cipher	Fractionated Morse Cipher
None	Alberti Wheel	Alberti Wheel	Low Coincidence Index
None	Autoclave	Autoclave	Low Coincidence Index
Alphabet and ‘#’	Digrafid Cipher	Digrafid Cipher	Low Coincidence Index
Spaces and words	Cryptogram solver
Grid	Columnar transposition
Grid	Route Cipher
Grid	Cardan Grille
Single letters	Polybius Square. Bifid or Trifid Cipher
Pairs	Playfair Cipher
Pairs	Four Square Cipher	Four Square
No keyword	Keyed Vigenere
No keyword	Auto Key Vigenere
Keyword	Vigenere Cipher
Keyword	Beaufort Cipher	Beaufort	Low Coincidence index
Keyword	Bellaso Cipher	Bellaso	Low Coincidence index
Keyword	Chao Cipher	Chao	Low Coincidence index
Keyword with numbers	Bazeries	Bazeries	Coincidence index of language
Keyword with numbers	Gronsfeld	Gronsfeld	Coincidence index of language
Keyword=number, repeated letters	Burrows Wheeler Transform	BWT
Short keyword	Keyed Caesar
Long keyword	One Time pad
Permutation key & cut-sequence	AMSCO Cipher		Coincidence index of plain text
Two keys	Affine Cipher		Coincidence index of language
Long text	Cardan Grille	Cardan Grille
Grid of numbers	Hill Cipher	Hill	Low Coincidence Index