ElasticSearch Elasticsearch is a free, open-source search and analytics engine that combines a scalable data store with search engine capabilities: What it does: Elasticsearch is a distributed search and analytics engine that's used for full-text search, log analytics, security intelligence, business analytics, and operational intelligence. How it works: Elasticsearch uses distributed search and aggregation strategies to parallelize computation and merge results from multiple shards. Features: Elasticsearch includes: Secure and scalable storage Machine learning and LLMs Data visualization Workflow automation How it was created: Shay Banon created Elasticsearch in 2010, building it from the ground up to be distributed and using a common interface, JSON over HTTP. What it's based on: Elasticsearch is based on the Apache Lucene open source search engine. Who uses it: 50% of the Fortune 500 trust Elasticsearch.