LXR Cross Referencer vs OpenGrok
LXR Cross Referencer
lxr.sourceforge.ioOpenGrok
oracle.github.ioSide by side
| Figure | LXR Cross Referencer | OpenGrok |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Code Search Tools | 7.6 (#21) | 7.8 (#11) |
| Purpose | LXR indexes and cross-references source code for web browsing, linking identifiers to their definitions and uses. | OpenGrok is a Java source code search and cross-reference engine for searching, cross-referencing, and navigating source trees. |
| Security | The feature log says release 2.3 added protection against a vulnerability that allowed arbitrary command execution. | OpenGrok provides a granular authorization framework, while authentication is handled by the application server or a reverse proxy. |
| Support | The project directs users to its forum and trackers to contact developers and report issues. | The project directs users to discussions and mailing lists, and asks users to report bugs or feature requests through GitHub Issues. |
Plans
In their own words
LXR Cross Referencer
LXR Cross Referencer has no write-up on Specifiction yet; its figures are above.
OpenGrok
OpenGrok is a Java source code search and cross-reference engine for searching and navigating source trees. It searches full text, definitions, symbols, paths and revision history, with subtree searches, wildcards and date-range filters. Its read-only web interface provides syntax-highlighted cross-references, file and directory history, and revision diffs. Supported revision control systems include Git, Mercurial, Subversion, CVS, Perforce, ClearCase, Bazaar, Monotone, Razor, RCS, SCCS, Teamware and AccuRev. Plugins can add support for programming languages or revision control systems. The web application provides a REST API under `/api/v1/` and a granular authorization framework; authentication is handled by the application server or a reverse proxy. Setup requires creating an index and deploying the web application. The guide lists Java 21 through 25, Universal Ctags and a servlet container such as Tomcat 10.x. OpenGrok is free and open source under the CDDL license, and is maintained by volunteers. Support and project requests go through discussions, mailing lists and GitHub Issues.