Splunk is an American multinational corporation, that produces software for searching, monitoring, and analyzing machine-generated big data, via a Web-style interface.
Splunk (the product) captures, indexes, and correlates real-time data in a searchable repository from which it can generate graphs, reports, alerts, dashboards, and visualizations.
Splunk's mission is to make machine data accessible across an organization by identifying data patterns, providing metrics, diagnosing problems, and providing intelligence for business operations. Splunk is a horizontal technology used for application management, security and compliance, as well as business and Web analytics. As of early 2016, Splunk has over 10,000 customers worldwide.