OHDSI offers a wide range of open-source tools to support various data-analytics use cases on observational patient-level data. Many of these tools are developed and maintained by community members, including those in our HADES and Open-Source Community workgroups (use this link to join our workgroups). Four of our open-source tools were the focus of a June “10-Minute Tutorial” community call, where the tool leads provided a brief presentation on the tool and how it can be used. Each of those presentations, along with slides and further information, are available below.