Case Converter
Convert text between different cases: uppercase, lowercase, title case, sentence case, and more.
Why Convert Text Case?
Case conversion is a common cleanup step: fixing text typed with Caps Lock on, turning a list of names into Title Case for a report, or normalizing code identifiers to lowercase.
Because the result updates live, you can compare formats by switching the dropdown without re-pasting your text.
How Each Case Mode Works
UPPERCASE and lowercase simply map every character. Title Case capitalizes the first letter of each word. Sentence case capitalizes the first letter of each sentence. tOGGLE cASE alternates lowercase and uppercase by character position, starting lowercase.
Each mode runs locally with no signup or upload.
Frequently Asked Questions
What case types are supported?
The converter offers UPPERCASE, lowercase, Title Case, Sentence case, and tOGGLE cASE. The result updates as you type and as you change the selected option.
How does Title Case work?
Title Case capitalizes the first letter of every word and lowercases the rest, so short words such as 'the' and 'of' are capitalized too. It is a simple transformation, not a grammar-aware headline style.
How does Sentence case work?
Sentence case lowercases the whole text, then capitalizes the first letter at the start and after a period, exclamation mark, or question mark.
Is my text stored or shared?
No. All conversions run in your browser, so your text is never sent to a server.