Apache Solr is an enterprise search platform built on the Apache Lucene library. Written in Java, it provides full-text search, hit highlighting, faceted search, real-time indexing and dynamic clustering — a mature, battle-tested engine used for complex search applications and large-scale enterprise data discovery.

Key Features

• Full-text search — Fast, relevance-ranked search across text-heavy data via Lucene
• Faceted navigation — Dynamic faceting by category, brand, price and custom fields
• Real-time indexing — Documents become searchable almost immediately
• Scalable & reliable — Distributed search with replication and sharding across clusters
• Rich query DSL — Complex boolean, fuzzy, wildcard and proximity queries
• Admin UI & APIs — Web-based admin console and REST APIs for management

Why Use Apache Solr?

Solr has been powering enterprise search for over a decade and remains one of the most feature-complete engines available. Its faceting, clustering and near-real-time indexing are well suited to large catalogues and document repositories, backed by a mature ecosystem and extensive documentation.

Use Cases

• E-commerce faceted search and product discovery
• Enterprise document and knowledge-base search
• Web-scale content indexing
• Analytics faceting and clustering exploration

Platform

Linux · macOS · Windows · Docker · Kubernetes

Licence

Apache 2.0

Website

solr.apache.org