Project Summary
OpenGrok is a fast and usable source code search and cross reference engine. It helps you search, cross-reference and navigate your source tree. It can understand various program file formats and version control histories like Mercurial, Git, SCCS, RCS, CVS, Subversion, Teamware, ClearCase, Perforce and Bazaar. In other words it lets you grok (profoundly understand) the open source, hence the name OpenGrok. It is written in Java.
In a Nutshell, OpenGrok...
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has a well established, mature codebase
maintained by a large development team
with stable Y-O-Y commits -
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took an estimated 31 years of effort (COCOMO model)
starting with its first commit in November, 2006
ending with its most recent commit 3 days ago
Quick Reference
Common Development and Distribution License 1.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Sub-License
Use Patent Claims
Forbidden
Hold Liable
Use Trademarks
Required
Disclose Source
Include Copyright
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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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nearly 1 in 3 companies have no process for identifying, tracking, or remediating known open source vulnerabilities
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30 Day SummaryNov 14 2025 — Dec 14 2025
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12 Month SummaryDec 14 2024 — Dec 14 2025
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