Apache Lucene set the standard for search and indexing performance. Lucene is the search core of both Apache Solr™ and Elasticsearch™. Our core algorithms along with the Solr search server power applications the world over, ranging from mobile devices to sites like Twitter, Apple and Wikipedia.
![Welcome to Lucene!](https://cdn-ak-scissors.b.st-hatena.com/image/square/06c35341a4fb463edee97ddb8c13b3f26bce7bb0/height=288;version=1;width=512/https%3A%2F%2Flucene.apache.org%2Ftheme%2Fimages%2Flucene%2Flucene_og_image.png%3Fv%3D0e493d7a)