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Lucene.net pricing

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Search Library · Vendor site 2026-10-04

Apache Lucene.NET is an open source C# port of the Lucene search library for .NET runtimes. It provides indexing, analyzers, and query APIs for full-text search in applications, with broad .NET Standard and .NET Framework support and thousands of passing unit tests.

Updated 2026-10-04View sources
Official website
Category
Search Library
Free access
Open source Apache 2.0 library distributed via NuGet with no vendor subscription on the project site.
API access
Public documentation and sample code show IndexWriter, IndexSearcher, and analyzer APIs for building search indexes in .NET.

Understand the total cost

Lucene.net pricing & plans

Pricing

Not listed

Official monthly price not confirmed

API
Public documentation and sample code show IndexWriter, IndexSearcher, and analyzer APIs for building search indexes in .NET.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Facts apply to the named version and check date. Send a sourced correction if something changed.

Lucene.net pricing questions

Is Lucene.net free?

Lucene.net offers a way to start free, but not a standard ongoing plan. Open source Apache 2.0 library distributed via NuGet with no vendor subscription on the project site.

How much does Lucene.net cost?

Lucene.net does not publish a monthly price we could confirm.

Does Lucene.net have an API?

API or developer access is mentioned. Public documentation and sample code show IndexWriter, IndexSearcher, and analyzer APIs for building search indexes in .NET.

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