Search & Retrieval
apache/lucene-solr
Apache Lucene and Solr open-source search software
OtherApache-2.0updated May 15, 2026
Search Formula-1โโA distributed high performance massive data engine for enterprise/vertical search
$ git clone https://github.com/izenecloud/sf1r-lite.gitApache Lucene and Solr open-source search software
PISA: Performant Indexes and Search for Academia
Open-Source Information Retrieval Courses @ TU Wien
Language model search engine built on a vector database and an anything key/value store.
Data from GitHub ยท snapshot Sep 24, 2026