Frequency Analysis
Analyze letter frequencies to break substitution ciphers and understand text patterns
📊 Text Analysis
🔓 Cipher Breaking
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
📈 Letter Frequency
💡 Analysis Tips
🔤 Most common English letters: E, T, A, O, I, N, S, H, R
📝 Common bigrams: TH, HE, IN, ER, AN, RE, ED, ND, ON, EN
🔍 Look for single-letter words (A, I) and common patterns
⚡ Index of Coincidence ~0.067 suggests English text
📋 Common Patterns
Single letters: A, I
Two letters: OF, TO, IN, IT, IS, BE, AS, AT, SO, WE, HE, BY, OR, ON, DO, IF, ME, MY, UP, AN, GO, NO, US, AM, HI
Three letters: THE, AND, FOR, ARE, BUT, NOT, YOU, ALL, CAN, HER, WAS, ONE, OUR, HAD, BUT, DID, GET, MAY, HIM, OLD, SEE, NOW, WAY, WHO, BOY, DID
Double letters: LL, SS, EE, OO, TT, FF, RR, NN, PP, CC