Text UtilitiesText CheckersFree Tool
Case Checker
Detect whether your text is UPPERCASE, lowercase, Title Case, or a mix, by comparing it against each transformed version of itself.
How to Use Case Checker
- 1Paste your text
- 2View which case format(s) it matches
Frequently Asked Questions
It transforms your input to uppercase, lowercase, and title case, then checks whether the original text exactly matches any of those versions — rather than examining letters one by one.
It means the text didn't exactly match the all-uppercase or all-lowercase transformation — this can include genuinely mixed text ("Hello World") as well as Title Case text that also happens to satisfy the mixed-case condition, since a text can match more than one category at once (e.g. a single capitalized word is both Title Case and mixed case).
No — the comparisons only affect letters; numbers and punctuation don't change case, so they don't influence any of the four results.
Related Tools
Uppercase Converter
Convert any text to ALL UPPERCASE using JavaScript's built-in Unicode-aware case mapping.
Lowercase Converter
Convert any text to all lowercase using JavaScript's built-in Unicode-aware case mapping.
Title Case Converter
Capitalize the first letter of every word — a simple word-by-word title case, not a style-guide-aware converter.
Palindrome Checker
Check whether a word or phrase reads the same forwards and backwards, ignoring spaces, punctuation, and letter case.