ToolRoof

Text tools

Case converter

Change text to upper, lower, title, or sentence case.

Processed locally

For languages with upper- and lowercase letters; Arabic letters do not change case.

Case converter
Result

Your answer will appear here.

Help and method

Choose uppercase, lowercase, title or sentence style. Language-aware case rules are used; title style capitalizes word starts, not editorial exceptions. Scripts without letter case may remain unchanged.

Methods and reliability

Worked example

An example you can try or adapt to your own values.

Text
Hello world
Letter case
UPPERCASE

Result

HELLO WORLD

Try these inputs