# java-decompiler/jd-gui

A standalone Java Decompiler GUI

Repository: https://github.com/java-decompiler/jd-gui
Canonical: https://ross.abutalabs.com/products/jd-gui
Language: Java
License: GPL-3.0
License Family: copyleft
Last push: 2024-07-08T18:45:59+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4179, "days_push": 786, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 15180, forks 2477 (observed 2026-08-28T04:11:09.328035+00:00)

## What it is
JD-GUI is a standalone graphical Java decompiler that displays Java source code reconstructed from .class files. It lets users browse decompiled sources with instant access to methods and fields.

## Use cases
- decompile java class files to readable source
- browse decompiled jar files in a gui
- recover source code from compiled java binaries
- inspect methods and fields of a class file
- analyze third-party java libraries without sources

## When to choose
- you need a quick visual tool to read decompiled Java code
- you want a standalone desktop app with drag-and-drop file opening
- you need cross-platform support (Windows, macOS, Linux packages)

## When to avoid
- you need programmatic or command-line decompilation in a build pipeline
- you want an IDE-integrated decompiler (use JD-Eclipse instead)
- you need decompilation for languages other than Java

## Facets
- artifact type: application
- maturity: maintenance
- function: gui, developer-tools, reverse-engineering
- domain: developer-tools, reverse-engineering, programming-languages
- platform: cross-platform, windows, jvm
- tags: java-decompiler, class-file-viewer, source-recovery, desktop-app, macos, linux

## Member repositories
- java-decompiler/jd-gui (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:09.328035+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 2026-08-29T17:06:34.623865+00:00, confidence not recorded.
  - readme: https://github.com/java-decompiler/jd-gui (fetched 2026-08-28T04:11:09.328035+00:00, sha 8a62c02f4519)
- Data as of 2026-08-30T08:39:29.467469+00:00.