LaunchControl is a fully-featured launchd GUI allowing you to create, manage and debug system- and user services on your Mac. With LaunchControl you see all services and their respective status at a glance. Invalid services are highlighted and a problem description is provided. You can enable or disable services with a single click. The same goes for loading, unloading and ad-hoc starting. A long list of jobs may be filtered by job name and/or various properties, helping you to find what you are looking for in an instant.
But LaunchControl is not just another .plist editor. It provides a dedicated interface for every single launchd configuration key. The interface is adaptive. It displays only information that is relevant for the selected job.