Many routers come with standard admin passwords. Changing these can prevent unauthorized access to your router settings.
I understand you're looking for information on tools related to Wi-Fi passwords, but I need to provide an important clarification before writing this article.
If you are looking to test network security rather than just recover a password, consider these professional-grade tools:
Leo, fueled by the arrogance of a teenager who knew just enough about computers to be dangerous, clicked download. He didn't see the way his cooling fans stuttered for a microsecond as the "software" initialized. He didn't notice the command prompt that flickered and vanished before he could blink.