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Apache Solr

Search Free

Apache Solr is a highly scalable, open-source enterprise search platform built on Apache Lucene that provides full-text search, faceted navigation, hit highlighting, and distributed indexing for large-scale document collections. Its JSON, XML, and REST APIs make it accessible across programming languages, and its extensive plugin ecosystem supports vector search, neural ranking, and custom analysis pipelines. Enterprise engineering teams building internal search applications, e-commerce product search, and document management systems use Solr for its proven reliability at scale, comprehensive feature set, and the operational flexibility of self-hosted infrastructure.

💰 Pricing

Free

📂 Category

🏷️ Tags

search, open-source, enterprise

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