OpenGrok

6.0easy start · #17 of 40
in Code Search Tools

Free to practise onnot on record
Free trialnot on record
Well documentednot on record
Runs where you workyes

Runs on api, Linux, Mac, self-hosted, Web, Windows.

OpenGrok is ranked #17 of 40 in code search tools on The Geeks Club. It runs on API, Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

OpenGrok plans and pricing

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OpenGrok Free Open-source project · CDDL license oracle.github.io · 5 Oct 2026

Compared on code search tools

Indexing scope: codebase
Deployment: self_hosted
Regex search: No
Code navigation: Yes

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The record

Purpose: OpenGrok is a Java source code search and cross-reference engine for searching, cross-referencing, and navigating source trees.
Search features: It searches full text, definitions, symbols, paths, and revision history, with subtree searches, wildcards, and date-range filters.
Code browsing: Its read-only web interface provides file history, revision diffs, directory history, and syntax-highlighted cross-references.
Repository integrations: The supported revision control systems include Git, Mercurial, Subversion, CVS, Perforce, ClearCase, Bazaar, Monotone, Razor, RCS, SCCS, Teamware, and AccuRev.
Extensibility: Plugins can add support for programming languages or revision control systems.
API: The web application provides a REST API under `/api/v1/`.
Security: OpenGrok provides a granular authorization framework, while authentication is handled by the application server or a reverse proxy.
API token security: API bearer tokens require HTTPS unless the web application is configured to allow tokens over an insecure channel.
Requirements: The setup guide lists Java 21 through 25, Universal Ctags, a servlet container such as Tomcat 10.x, and a recent browser for clients.
Resource needs: The guide says the indexer is usually run with an 8 GB JVM heap and the web app needs more memory.
Support: The project directs users to discussions and mailing lists, and asks users to report bugs or feature requests through GitHub Issues.
Maintenance: The project says it is maintained by enthusiasts and volunteers from around the world.
Release: The releases page lists version 1.14.19 as the latest release and describes it as allowing Java 25.
Price from: Free

Where it ranks on The Geeks Club

Best Code Search Tools in 2026#17 of 40

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Sources

oracle.github.io/opengrok/· checked 5 Oct 2026
github.com/oracle/opengrok/wiki/Features· checked 5 Oct 2026
github.com/oracle/opengrok/wiki/Supported-Revision· checked 5 Oct 2026
github.com/oracle/opengrok/wiki/Web-services-%28RE· checked 5 Oct 2026
github.com/oracle/opengrok/wiki/Authorization· checked 5 Oct 2026
github.com/oracle/opengrok/wiki/How-to-setup-OpenG· checked 5 Oct 2026
github.com/oracle/opengrok/releases· checked 5 Oct 2026