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 32 years of effort (COCOMO model)
starting with its first commit in November, 2006
ending with its most recent commit about 1 month 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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by exploring contributors within projects, you can view details on every commit they have made to that project
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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
30 Day SummaryJul 1 2026 — Jul 31 2026
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12 Month SummaryJul 31 2025 — Jul 31 2026
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