Kate.JS can be used by visiting the home page (https://katejs.com) and following the instructions. No previous set up, software installation, configuration, or registration is required, the website provides all the tools you need to complete the entire program.
Kate.JS can be used free of charge. No advertisements are used on the page, and any information collected while using Kate.JS is not sold.
Registration for Kate.JS is optional. Without registering, your progress in the course is saved to your computer. By registering, you can resume where you left off on another computer. Registering also prevents losing your progress if you delete your browser history, which will reset your progress.
To register, you only need to provide a username and password. The username does not need to be your name, you can choose any anonymous identifier you want. Do not use a password you use on any other website. If you provide your e-mail address, it will be used in case you forget your password. We will not send you e-mail for any other reason.