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Apache Lucene open-source search software

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Created 2021-02-23 · Updated 2026-10-04 · #6377 today
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README

Apache Lucene

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Apache Lucene is a high-performance, full-featured text search engine library written in Java.

Build Status Revved up by Develocity

Online Documentation

This README file only contains basic setup instructions. For more comprehensive documentation, visit:

Building

Basic steps

  1. Install JDK 25 using your package manager or download manually from OpenJDK, Adoptium, Azul, Oracle or any other JDK provider.
  2. Clone Lucene's git repository (or download the source distribution).
  3. Run gradle launcher script (gradlew).

We'll assume that you know how to get and set up the JDK - if you don't, then we suggest starting at and learning more about Java, before returning to this README.

Contributing

Bug fixes, improvements and new features are always welcome! Please review the Contributing to Lucene Guide for information on contributing.

  • Additional Developer Documentation: dev-docs/

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