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 is locked by password to your browser only, so you can use it on life sites securely. It exists as "pure PHP" and WordPress® plugin, they have slight different functions. 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.