Bully vs Nuclei vs Crunch: Which Design Resources tool is Best in 2025?

Bully is a robust open-source wireless network auditing tool for ethical hacking, seamlessly integrated into Kali Linux (version 2024.06.R1). As a Wi-Fi Protected Setup brute-force tool for cybersecurity, it targets WPS vulnerabilities to recover WPA/WPA2 passphrases, making it a top wireless password recovery tool for penetration testing. Written in C with a 1.4 MB size, Bully offers improved performance over Reaver, supporting Pixie-Dust attacks for rapid PIN cracking.

Nuclei is a cutting-edge, open-source vulnerability scanner pre-installed in Kali Linux (version 3.4.4), designed for rapid and accurate security testing. This template-based vulnerability scanner for penetration testing uses YAML templates to detect CVEs, misconfigurations, and exposed services across web apps, APIs, and networks. With over 8,000 templates and support for protocols like HTTP and TCP, Nuclei is a leading network vulnerability assessment tool for cybersecurity professionals, offering zero false positives and CI/CD integration for DevOps workflows.

Crunch is a powerful open-source tool pre-installed in Kali Linux (version 3.6), tailored for cybersecurity professionals and penetration testers. This custom wordlist generator for brute-force attacks creates tailored wordlists from specified character sets, making it a leading password-cracking preparation tool for ethical hacking. With an 83 KB footprint and support for Unicode, Crunch empowers users to craft precise inputs for password crackers, strengthening security testing workflows.