Using tidier is very easy! Just upload your code and follow the instructions below. For a more comprehensive manual you can take a look at Tidier's wiki.
You can either upload a single .erl file or a .tar.gz archive that contains the files that you want to get tidied. Don't forget to choose the transformations that you would like to enable or disable from the options on the right. You can find out what each option does by placing your mouse over the option's name. Note that the "Back" button of your browser will not work properly once you start refactoring your code.
Tidier will show you the refactored code one transformation at a time. For each transformation, you can either accept it (recommended) or keep the original code. Accepting a transformation often enables some other transformation on the resulting code. After all transformations have been applied to some function, tidier will also show the complete set of changes that took place. For functions where only one transformation is applicable, this may give the impression that the transformations are done twice. If you do not like this, you can bypass this step by disabling the button "show_final" below. Similarly, the entire code can be transformed in one go by enabling the button "automatic" below.
