OrangeHRM Starter is a free, open-source human resource management system covering the essentials any HR department needs: employee records, leave and PTO tracking, time and attendance, recruitment (ATS), and performance reviews, all wrapped in a mobile-friendly interface. Available since 2006 and deployable on-premise or in the cloud, it gives small and mid-sized organizations a no-cost path to centralized HR administration with the option to upgrade to a paid Advanced edition for payroll and deeper analytics.