JD-GUI vs Reaver: Which Exploit Database tool is Best in 2025?

JD-GUI is an open-source, standalone graphical Java decompiler, available on Kali Linux at /usr/bin/jd-gui, designed for reverse-engineering compiled Java applications by extracting readable source code from .class or .jar files. Developed by Emmanuel Dupuy and packaged for Kali by Sophie Brun, JD-GUI provides a user-friendly GUI to browse class hierarchies, view decompiled Java code, and save sources as .java files. Ideal for cybersecurity researchers, Android developers, and ethical hackers, it supports malware analysis, code auditing, and vulnerability research. Often paired with tools like Dex2Jar, JD-GUI simplifies Java bytecode analysis.

Reaver is a robust open-source wireless network auditing tool for ethical hacking, integrated into Kali Linux (version 2024.06.R1). As a Wi-Fi Protected Setup (WPS) brute-force tool for cybersecurity, it exploits WPS vulnerabilities to recover WPA/WPA2 passphrases, making it a premier wireless password recovery tool for penetration testing. With an 851 KB size, Reaver automates attacks and includes Wash, a WPS-enabled access point scanner for reconnaissance.