apache/lucene

Health v2 · maintenance only

Adoption not part of the score

3586 stars · 1444 forks observed · 2026-10-15

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Apache Lucene is a high-performance, full-featured text search engine library written in Java, providing indexing, search, spellchecking, hit highlighting, and advanced analysis/tokenization. It is the search core underlying Apache Solr, Elasticsearch, and OpenSearch, with a PyLucene Python binding also available.

Use cases

• add full-text search to my application
• build an inverted index over documents
• implement ranked keyword search with highlighting
• add autocomplete and spell correction to search
• embed a search engine in a Java backend
• index and query millions of documents fast

When to choose

• you need a fast, embeddable search library in the JVM ecosystem
• you are building your own search server or database on top of a proven core
• you need fine-grained control over indexing, analysis, and scoring

When to avoid

• you want a ready-to-run search server with REST APIs - use Solr, Elasticsearch, or OpenSearch instead
• your project is not on the JVM and PyLucene bindings are insufficient
• you only need simple database full-text search features

Facets

library · maturity stable

search-engine parser nlp databases developer-tools jvm cross-platform full-text-search indexing information-retrieval tokenization spellchecking hit-highlighting vector-search pylucene search

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For agents

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