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ciphers

a1z26
affine
atbash
baconian
polybius square
rot13

encoding

base64
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url

general

basic
search and replace
word count

html

extract links
slugify
strip tags

lists

number lines
prefix | suffix
remove duplicate lines
reverse list

sanitize

clean spaces
remove blank line

text manipulation

add newline
remove newline
space tab converter

Polybius Square

Your Text

Key

Cipher Alphabet

Encode/Decode

Output

Learn about Polybius Square