Dealing with large configuration spaces is a complex task for developers, especially when manually searching for the configuration that best suits some given requirements. In this paper, we present the ICO tool suite, a set of software components designed to help developers optimize their configuration w.r.t a set of performance indicators. This tool suite can be used through a command-line client or an Eclipse plugin, while the loose coupling with its core library make it flexible-enough to be integrated into existing tools. ICO is assessed by evaluating the time it saves to users over a manual optimization.