Input some strings, convert all letters to lowercase after clicking: the text you want to handle convert Input some strings, convert all letters to uppercase after clicking: THE TEXT YOU WANT TO HANDLE convert Input some strings, convert strings to uppercase first letter format after clicking: The String You Want To Handle convert Input a file path, convert it to the Unix style path or the Windows style path after clicking: file path To Windows style To Unix style Input some strings, convert all blank spaces to transverse line after clicking: the-text-you-want-to-handle convert