Algolia, OpenSearch, Vast.ai, P2PVPS, Manticore search, Sphinx (search engine), Website Free Host, Apache Solr, Apache Lucene, MeiliSearch, Typesense, Metasearch, RediSearch, Xapian, SearchBlox, Expertrec Search Engine, Site Search 360, OpenSearchServer, Elasticlunr, LetsCloud, Cloudsmash, Cludo Site Search, iExec, Measured Search, SearchUnit, Enonic XP, WH.PerfectDeals.Today, FindVPShost.com, Sooqr, XEL Elastic, Azure Search, Google Mini, LetsHostTalk, wordpress i-search pro, Apisearch, HiveNet, DeepBrain Chain, Whoosh, Devo, SearchTap.io are some alternatives to Elasticsearch.