Percona MySQL Tools are provided free to MySQL community members who need a better way to perform common MySQL tasks or new ways to address complex ones.
Percona Toolkit is a collection of advanced command-line tools used by Percona support staff to perform a variety of MySQL and system tasks that are too difficult or complex to perform manually.
Percona Monitoring Plugins are high-quality components to add enterprise-grade MySQL monitoring and graphing capabilities to your existing in-house, on-premises monitoring solutions. The components are designed to integrate seamlessly with widely deployed solutions such as Nagios and Cacti, and are delivered in the form of templates, plugins, and scripts.
The Percona Data Recovery Tool is a free toolkit for recovering lost or corrupted data from InnoDB tables. It provides a way to extract InnoDB's data from files or raw devices in a tab-separated format when standard InnoDB recovery cannot be used for some reason, such as a dropped table, or severe corruption that prevents InnoDB from recognizing the data. It can be used to retrieve deleted tables, recover previous versions of updated rows, or fix InnoDB file corruption after a hardware failure such as a memory fault or bad cabling.