A little context.
Uppercase and lowercase use Unicode case conversion. Title case capitalizes word starts; sentence case capitalizes after sentence-ending punctuation.
Try an example
hello world → HELLO WORLDHow to use this tool
- Enter text, case in the workspace above.
- Select Run tool to process your input. Invalid values produce a message next to the form.
- Copy the result or download it as a file. Reset example restores the original input.