# oracle/opengrok

OpenGrok is a fast and usable source code search and cross reference engine, written in Java

Repository: https://github.com/oracle/opengrok
Canonical: https://ross.abutalabs.com/products/opengrok
Homepage: http://oracle.github.io/opengrok/
Language: Java
License: NOASSERTION
License Family: other
Topics: opengrok, java, source, code, search, engine, maven
Last push: 2026-08-25T12:16:55+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 99, longevity 100
- inputs: {"age_days": 4986, "days_push": 8, "days_rel": 9, "gap_med": 15.0, "n_releases_24m": 29}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4922, forks 834 (observed 2026-08-28T04:09:02.448920+00:00)

## What it is
OpenGrok is a fast source code search and cross-reference engine written in Java that indexes source trees and version control histories. It provides a web interface (deployed in a servlet container like Tomcat) for searching, browsing, and navigating large codebases.

## Use cases
- search across a large monorepo from a web browser
- cross-reference function and symbol definitions in a codebase
- browse source code with version control history
- set up a self-hosted code search server for a team
- index multiple SCM repositories for fast lookup
- navigate unfamiliar codebases quickly

## When to choose
- you need fast, self-hosted search over large source trees
- you want cross-referenced, hyperlinked source browsing
- your code lives in many version control systems and you need unified search

## When to avoid
- you only need IDE-local code navigation
- you want a lightweight grep-like CLI without a server
- you need semantic AI-powered code search rather than lexical indexing

## Facets
- artifact type: application
- maturity: stable
- function: search-engine, http-server, developer-tools
- domain: developer-tools, version-control, web-development
- platform: jvm, self-hosted
- tags: source-code-search, cross-reference, code-browser, indexing, ctags, servlet, tomcat, search, docker, linux, web-server

## Member repositories
- oracle/opengrok (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:02.448920+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:18:01.739005+00:00, confidence not recorded.
  - readme: https://github.com/oracle/opengrok (fetched 2026-08-28T04:09:02.448920+00:00, sha 0e262acd83df)
  - homepage: http://oracle.github.io/opengrok/ (fetched 2026-08-29T08:59:51.303774+00:00, sha 1653637e6070)
- Data as of 2026-08-30T08:39:29.467469+00:00.