Case Converter
The Case Converter instantly rewrites your text in any of five styles: UPPERCASE, lowercase, Title Case, Sentence case, or AlTeRnAtInG CaSe. Paste your text and copy the converted result with one click — ideal for headlines, brand names, usernames and formatted emails.
What this means
Uppercase and lowercase set every letter to the same size. Title Case capitalizes each word's first letter, Sentence Case capitalizes only the first letter of each sentence, and alternating case flips every other character to create a meme-style effect.
How we calculate it
Formula
Each style applies a different capitalization rule to every character in the input.Worked example
An input like 'hello world!':
- 1UPPERCASE: HELLO WORLD!
- 2lowercase: hello world!
- 3Title Case: Hello World!
Important assumptions
- Title Case capitalizes words separated by spaces or hyphens; articles and short prepositions are kept as typed.
Frequently asked questions
What is the difference between title case and sentence case?
Title Case capitalizes the first letter of every word (e.g. 'The Quick Fox'), while Sentence Case capitalizes only the first letter of each sentence (e.g. 'The quick fox. It jumped.').
Does the converter affect numbers and symbols?
No — case rules only apply to letters. Digits, punctuation and emoji pass through unchanged.
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