Percona Toolkit
A collection of advanced open source command-line tools, developed and supported by Percona, for MySQL tasks that are too difficult or complex to perform manually.
Percona Toolkit bundles the command-line tools Percona’s own support engineers use day to day — online schema changes (pt-online-schema-change), replica/table consistency checks (pt-table-checksum, pt-table-sync), and query analysis (pt-query-digest) among them — into a single collection so teams don’t have to write and maintain the equivalent scripts themselves.
It’s released under the GPL-2.0 license and actively maintained by Percona alongside their MySQL and Percona Server tooling.
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