Splunk is a software that captures, indexes, and analyzes machine-generated data in real-time to generate operational intelligence across an organization. It transforms raw data into searchable events that can then be searched, visualized, and used to create reports, alerts, and dashboards. Splunk offers features like searching and investigating data, data modeling and pivoting, visualization and reporting, and monitoring and alerts. It is easy to deploy, load data into, and search and visualize data to gain insights. However, Splunk can be expensive for some organizations.