Elastic is a search and analytics engine that allows users to store, search, and analyze large volumes of data quickly and in real-time. It is built on top of the open-source project called Elasticsearch, which provides powerful full-text search capabilities. Elastic is commonly used for log and event data analysis, enabling organizations to gain insights from their data efficiently. The Elastic Stack, often referred to as the ELK Stack, includes Elasticsearch, Logstash, and Kibana. Logstash is used for data collection and processing, while Kibana provides visualization tools to help users understand their data better. Together, these components make it easier to manage and analyze data across various applications.