KC Tools is a set of tools for "in deep" development and troubleshooting of WEB sites. It allows reading of environment info, direct database access and terminal-like interface with server. It exists as "pure PHP" and WordPress plugin, they have slight different functions. It is locked by password to your browser only, so you can use it on life sites securely. I create it as “swiss knife” tool for me for everyday use long time ago, it saves me countless number of hours, helps me in so much cases, so I decide to release it as finished product.
Short version: You can have only "this" version with "One version license". For future updates, bugfixes and new versions buy "Developer license".
Full version can be found here.