apache/lucenenet

Health v2 · maintenance only

Flags: prerelease_only

Adoption not part of the score

2406 stars · 658 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Apache Lucene.NET is an open-source full-text search library written in C#, ported from the Java Apache Lucene project. It provides powerful indexing and search features, plus spellchecking, hit highlighting, and advanced text analysis/tokenization capabilities.

Use cases

• add full-text search to a .NET application
• build an inverted index over documents in C#
• implement ranked keyword and phrase queries
• add spellchecking and did-you-mean suggestions
• highlight search hits in results
• tokenize and analyze text with configurable analyzers

When to choose

• you need high-performance embedded full-text search in a .NET app without running a separate search server
• you want Lucene's mature indexing and query features on .NET
• you need fine-grained control over analyzers, tokenizers, and indexing

When to avoid

• you want a turnkey distributed search cluster with REST APIs (use Elasticsearch or Solr)
• you need a stable non-beta release of the 4.x feature set, since 4.8.0 is still beta
• your project is not on the .NET platform

Facets

library · maturity active

search-engine parser nlp developer-tools dotnet cross-platform windows full-text-search indexing lucene c-sharp tokenization spellchecking hit-highlighting search natural-language-processing linux macos

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markdown · JSON · MCP: product_card(name="apache/lucenenet")