The free online tool ConvertText is allow you to convert string into upper case, lower case and capitalized case. Then you can copy the converted text and paste it back to your document.
How it works?
Using the ConvertText tool is very simple. Choose the desired format and paste or typing your text in the text field. Your string is automatically convert in your chosen format. Then, copy the converted text by clicking the "Copy" button and paste it in your document.
In which cases can convert my text?
You can convert your text in 3 different cases:
All the letters from your text are converted in capital letters
Example: THIS IS A UPPER CASE TEXT
All the letters from your text are converted in small letters
Example: this is a lower case text
The first letter of every word from your text is converted in capital letter
Example: This Is A Capitalized Case Text