Change text case online — uppercase and lowercase
Case converter online: uppercase, lowercase, title style or link style. Free in the browser.
The default is Sentence: the first letter after the start and after . ! ? … becomes capital, including scripts other than Latin and Cyrillic.
Title case lifts each word and keeps the hyphen: hello-world → Hello-World. For code there is camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE.
Copy sits in the panel header as a Copy button. The text stays on the device. The same tool also does translit.
Title case capitalizes the main words: the night market becomes The Night Market, and small words like of may stay lower depending on the rule you pick. Sentence case touches only the first letter. UPPER CASE is a shout and breaks abbreviations that were already mixed, such as iOS. camelCase joins words and is for identifiers, not for a headline. This page opens on title case. Transliteration of Cyrillic is the neighbouring mode, not a case change.
FAQ
What does Sentence do?
The first letter of the sentence is capital, the rest lowercase. A boundary is the start of the text or . ! ? … plus a space.
Do I need text before I pick a mode?
No. Modes work on an empty field.