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Apache Solr — Search (Open Source)

Apache Solr is an open-source Search solution from Apache Software Foundation. Compare it against 4 other Search tools on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.

What is Apache Solr?

Apache Solr is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under Search and published by Apache Software Foundation. Buyers typically evaluate Apache Solr when they need a dependable Search option and want to weigh the trade-offs between free, open-source and paid tools before committing.

Apache Solr alternatives

If Apache Solr isn't the right fit, compare these Search alternatives side by side:

Manticore SearchMeiliSearchOpenSearchTypesense

Frequently asked questions

Is Apache Solr free?
Yes. Apache Solr is open source and free to use, with no purchase cost for the core product.
What are the best Apache Solr alternatives?
Popular Search alternatives to Apache Solr include Manticore Search, MeiliSearch, OpenSearch, Typesense. See the full list of Search on FreeSoftwareX.
What type of software is Apache Solr?
Apache Solr is an open-source Search tool developed by Apache Software Foundation.

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