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SOLR

Fast search of large data sets, with customizable searches, secure platform for enterprise search.

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  • Free plan available
  • No credit card

What is SOLR?

Solr is an open-source search platform built on Apache Lucene that indexes and searches large datasets quickly. It's designed for organisations that need fast, relevant search results across millions or billions of documents. Solr handles text search, faceted navigation, and complex filtering; you can customise how searches work to fit your specific needs. The platform includes security features suitable for enterprise environments, such as authentication and access control. It works well for websites, e-commerce platforms, and internal document repositories where search performance matters.

Key features

Full-text search

indexes and searches large document collections with millisecond response times

Faceted navigation

groups search results by categories, allowing users to filter and refine results

Customisable ranking

adjust how relevant results appear based on fields, recency, popularity, or custom logic

Real-time indexing

adds, updates, or removes documents from the search index without restarting

Security controls

includes authentication, authorisation, and SSL encryption for enterprise deployments

REST API

integrates with applications through standard HTTP endpoints

Pros & cons

Advantages

  • Open-source and free to use; no licensing costs for any deployment size
  • Handles large datasets efficiently; scales from gigabytes to terabytes of indexed content
  • Highly customisable; you can tune relevance, filtering, and search behaviour to your exact requirements
  • Mature project with active maintenance and a large community for support

Limitations

  • Steep learning curve; requires understanding of indexing concepts, query syntax, and configuration files
  • Needs dedicated infrastructure and operational expertise to deploy, monitor, and maintain
  • Not a fully managed service; you manage updates, backups, and performance tuning yourself

Use cases

E-commerce sites: product search with filters by price, category, brand, and availability

Content repositories: searching documents, articles, or knowledge bases across an organisation

Log analysis: indexing application logs for rapid search and diagnostics

Website search: replacing basic database queries with faster, more relevant results

Internal tools: adding search functionality to enterprise applications and databases

Ready to try SOLR?

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Pricing

Free

Free

Full Solr functionality; open-source software with no usage limits

Get started with SOLR

Click through to SOLR and start using it now.

Try SOLR free
  • Free plan available
  • No credit card