Apache Lucene is described as 'High-performance, full-featured text search engine library written entirely in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform. Apache Lucene is a open source' and is a Search Server in the file management category. There are more than 10 alternatives to Apache Lucene for a variety of platforms, including Linux, Web-based, Mac, Windows and Self-Hosted apps. The best Apache Lucene alternative is Microsoft Bing, which is free. Other great apps like Apache Lucene are Elasticsearch, OpenSearch, Qdrant and Tantivy Search Library.
This is the main entry for the search engine tool. For content related to AI Chatbot and AI-powered features, visit Microsoft Copilot
Unmatched relevance. Real-time insights. Anything is possible — when the precision of search meets the intelligence of AI.
OpenSearch is a community-driven, open source search and analytics suite derived from Apache 2.0 licensed Elasticsearch 7.10.2 & Kibana 7.10.2. It consists of a search engine daemon, and a visualization and user interface, OpenSearch Dashboards.
Qdrant (read: quadrant) is a vector similarity search engine and vector database. It provides a production-ready service with a convenient API to store, search, and manage points—vectors with an additional payload Qdrant is tailored to extended filtering support.
It is closer to Apache Lucene than to Elasticsearch or Apache Solr in the sense it is not an off-the-shelf search engine server, but rather a crate that can be used to build such a search engine.
Enterprise search, simplified. Cloud-based enterprise search solution that search across all of your organization’s content sources — Aconex, Procore, Dropbox, Microsoft Sharepoint, Onedrive, and more.
Milvus is an open-source vector database built to power embedding similarity search and AI applications. Milvus makes unstructured data search more accessible, and provides a consistent user experience regardless of the deployment environment.
ParadeDB is a modern Elasticsearch alternative built on Postgres. Built for real-time, update-heavy workloads.
ZIR AI allows application developers to add sophisticated ML-powered text search to their applications and platforms. It provides high performance gRPC APIs for indexing and running queries, encryption in transit and rest, and an OAuth 2.0 security model.
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