MetricsGrimoire is a set of tools for retrieving data from git, Subversion, Bugzilla, Jira, GitHub, Mailman and many other data sources about software development, and organizing them in a database. vizGrimoire is intended to analyze and visualize these data. With all of them, Grimoire Dashboards can be produced, providing information about software development communities, their activity and their processes. The talk will present the main aspects of these tools, how they are being used in real cases, and the reasons why it is important that they are free / open source software.