OpenGrok

{{Short description|Source code search and cross reference engine}}

{{Refimprove|date=March 2012}}

{{Infobox software

| name = OpenGrok

| logo = OpenGrok Logo.png

| logo size = frameless

| screenshot =

| caption =

| collapsible = yes

| author = Sun Microsystems

| developer = Oracle Corporation

| latest release version = {{wikidata|property|reference|P348}}

| latest release date = {{start date and age|{{wikidata|qualifier|P348|P577}}}}

| latest preview version =

| latest preview date =

| operating system = Cross-platform

| programming language = Java

| genre = Indexer and cross-referencer with Revision control

| license = CDDL

}}

OpenGrok is a source code cross-reference and search engine. It helps programmers search, cross-reference, and navigate source code trees to aid program comprehension.

It can read program file formats and version control histories such as Monotone, Subversion, Mercurial, Git, ClearCase, Perforce, AccuRev, Razor, and Bazaar.{{Cite web |title=Supported Revision Control Systems |url=https://github.com/OpenGrok/OpenGrok/wiki/Supported-Revision-Control-Systems |access-date=2023-12-30 |website=oracle/Opengrok Wiki |publisher=GitHub |language=en}}

The name comes from the term grok, a computing jargon term meaning "intuitive understanding".

OpenGrok is being developed mainly by the community with the help of a few engineers from the Oracle Corporation. OpenGrok is released under the terms of the Common Development and Distribution License (CDDL).

It is mainly written in Java, with some tooling done in Python. It relies on the analysis done by Ctags. There is an official Docker image available.