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Case Insensitive Testers
Tools for case-agnostic matching.
11 Tools Available
Case Insensitive
Flag based matching.
/pattern/
Mixed Case
Matches aAaA.
/[a-zA-Z]+/
Lowercase
Strict lowercase.
/^[a-z]+$/
Uppercase
Strict uppercase.
/^[A-Z]+$/
Title Case
Strict Titlecase.
/^[A-Z][a-z]+$/
Toggle Case
Matches any letter.
/[a-zA-Z]/
Camel to Snake
Group for replace $1_$2.
/([a-z])([A-Z])/
Snake to Camel
Group for replace uppercase.
/_([a-z])/
Case Insensitive Flag
JS Syntax example.
//pattern/i/
HTML Tags CI
Matches <TAG> or <tag>.
/<tag>/
CamelCase Split
Splits camelCase.
/(?=[A-Z])/