CafeTran can display white space characters such as a space, tab, new line and carriage return. Click the pilcrow button in the source editor toolbar to turn on/off the display of the invisible characters. For example, the middle dot character stands for a whitespace after turning this option on.

To determine a Unicode number of any character in the current segment, place a cursor before the character and run the action in the menu Edit > Show Unicode number. The number will be displayed in the status bar at the bottom of the window.