Elasticsearch
| Elasticsearch | |||||
|---|---|---|---|---|---|
| Original author(s) | Shay Banon | ||||
| Developer(s) | Elastic NV | ||||
| Initial release | 8 February 2010 | ||||
| Stable release | 
 | ||||
| Repository | github | ||||
| Written in | Java | ||||
| Operating system | Cross-platform | ||||
| Type | Search and index | ||||
| License | Triple-licensed Elastic License (proprietary; source-available), Server Side Public License (proprietary; source-available) and Affero General Public License (free and open-source) | ||||
| Website | www | ||||
Elasticsearch is a search engine based on Apache Lucene, a free and open-source search engine. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents. Official clients are available in Java, .NET (C#), PHP, Python, Ruby and many other languages. According to the DB-Engines ranking, Elasticsearch is the most popular enterprise search engine.