XrmToolBox is an application that can connect to Microsoft Dynamics CRM 2011, 2013 and 2015 (Online, OnPremise of IFD). It is shipped with more than 20 plugins to handle several administration, customization or configuration tasks.
One of the great point about XrmToolBox is its capability to welcome external plugins written by other developers, just by implementing specific part of XrmToolBox code.
The documentation is available through the wiki of XrmToolBox Github's repository. You will find information about prerequisites, list of existing plugins, help on how to connect to your Microsoft Dynamics CRM deployment and much more… If you feel you can contribute to this documentation, please create a Github account and help me to fill the wiki with as much interesting content as possible.
If you faced a bug or would like to make a suggestion to improve XrmToolBox and its included plugins, please go the suggestions section of XrmToolBox Github repository. You will have to create an account if you don't have one yet.
XrmToolBox is a free tool and will remain like this. But if you think this tool improved your productivity or saved you time on your Microsoft Dynamics CRM project, then you can help me by donating whatever amount you want through PayPal