Solr

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An open source enterprise search server based on Lucene search library, with XML/HTTP and JSON APIs, hit highlighting, faceted search, caching, replication etc.

What is Solr?

Solr is the popular, blazing fast open source enterprise search platform from the Apache Lucene project. Its major features include powerful full-text search, hit highlighting, faceted search, near real-time indexing, dynamic clustering, database integration, rich document (e.g., Word, PDF) handling, and geospatial search. Solr is highly reliable, scalable and fault tolerant, providing distributed indexing, replication and load-balanced querying, automated failover and recovery, centralized configuration and more. Solr powers the search and navigation features of many of the world's largest internet sites.
Solr is a tool in the Search Engines category of a tech stack.

Who is using it?

196 companies use Solr in their tech stacks, including Slack, Accenture, and Coursera.

Slack

Accenture

Coursera

trivago

Zalando

Walmart

Fiverr

Immowelt AG

Wayfair

Wongnai

SendGrid

Tiqets

Why developers like Solr

Powerful
Indexing and searching
Scalable
Customizable
Enterprise Ready
Restful
Apache Software Foundation
Great Search engine
Security built-in