Best Free Database Monitoring Tools

Percona Monitoring and Management (PMM) is a free, best-of-breed, open source database monitoring and management solution. It helps enterprises reduce complexity and simplify management, while optimizing performance and improving the security of your business-critical database environments, no matter where they are located - on-premises or in the cloud. It provides thorough time-based analysis for MySQL, PostgreSQL and MongoDB servers to ensure that your data works as efficiently as possible. PMM allows you to identify the issues that impact your business, fast! Our single platform simplifies management and reduces complexity. It helps you optimize your database by allowing you to easily find, fix, and prevent issues with scaling, bottlenecks and potential outages. Our innovative tools improve data security and reduce your risk of data exposure. PMM is used by thousands of organizations around the globe to manage their complex database environments.

Paessler PRTG is an all-inclusive monitoring software solution developed by Paessler. Equipped with an easy-to-use, intuitive interface with a cutting-edge monitoring engine, PRTG optimizes connections and workloads as well as reduces operational costs by avoiding outages while saving time and controlling service level agreements (SLAs). The solution is packed with specialized monitoring features that include flexible alerting, cluster failover solution, distributed monitoring, in-depth reporting, maps and dashboards, and more. PRTG monitors your entire IT infrastructure. All important technologies are supported: • SNMP: ready-to-use and custom options • WMI and Windows Performance Counters • SSH: for Linux/Unix and macOS systems • Traffic analysis using flow protocols or packet sniffing • HTTP requests • REST APIs returning XML or JSON • Ping, SQL, and many more