Lucene

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Very High Activity

Analyzed about 17 hours ago. based on code collected 1 day ago.

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Tags

apache apache_software_foundation documents fulltext_search index indexer indexing information_retrieval java lucene search search_engine searchengine

In a Nutshell, Lucene...

...
has had 73,877 commits made by 593 contributors
representing 932,095 lines of code
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is mostly written in Java
with an average number of source code comments
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has a well established, mature codebase
maintained by a very large development team
with stable Y-O-Y commits
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took an estimated 262 years of effort (COCOMO model)
starting with its first commit in September, 2001
ending with its most recent commit about 20 hours ago

Quick Reference

Organization:

Apache Software Foundation

Homepage
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Code Locations:

(2 Locations)

Similar Projects:

Adrien Grand, Jukka Zitting, Uwe Schindler, and markrmiller

Project Security

Vulnerabilities per Version ( last 10 releases )

There are no reported vulnerabilities

Project Vulnerability Report

Security Confidence Index

Poor security track-record

Favorable security track-record

Vulnerability Exposure Index

Many reported vulnerabilities

Few reported vulnerabilities

About Project Vulnerability Report

Did You Know...

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55% of companies leverage OSS for production infrastructure
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data presented on the Open Hub is available through our API
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in 2016, 47% of companies did not have formal process in place to track OS code
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search using multiple tags to find exactly what you need

About Project Security

Code

Lines of Code

Activity

Commits per Month

Community

Contributors per Month

Languages

Java	98%
12 Other	2%

30 Day Summary

Feb 6 2026 — Mar 8 2026

81 Commits
36 Contributors
including 11 new contributors
1 New Language :
C added Feb 17

12 Month Summary

Mar 8 2025 — Mar 8 2026

1004 Commits
Up + 231 (29%) from previous 12 months
123 Contributors
Up + 29 (30%) from previous 12 months

Most Recent Contributors

	zhouhui		Alan Woodward
	Mary Gouseti		dependabot[bot]
	Chris Parrinello		Seungmin123

Ratings

69 users rate this project:

4.5/5.0

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