1-AirCrack

By downloading the latest version of this program you will be able to penetrate a large number of known Wi-Fi networks with WPA2-PSK or WEP encryption. There is also a set of additional tools that enable you to control the Wi-Fi firewall and do a host of other things. The program quickly execute an attack on the Wi-Fi network in a short time

2-Fern Wi-Fi Cracker 
 
 This program is specially designed to search for gaps in the Wi-Fi network and exploit it to extract the password of the Wi-Fi network and is able to analyze the Wi-Fi networks in various encryption, developed with the use of Python language and when you use does not need to use an external network card, Network computer.
3-Waircut v2.0
  
 One of the programs I currently use is the Waircut program, which helps me to penetrate most of the Wi-Fi networks of the neighbors, where simple steps you can from thinking the password and the beautiful thing is that you can also use it in your Android phone and not just a computer.

4-HashCat 
 
 One of the best and fastest tools to break the protection of Wi-Fi networks in various encryptions without the need to be installed in your computer.

5-Infernal Twin 
 
Among the new projects in the area of penetration of Wi-Fi networks recently launched in the platform Github, which is based on the technique of Twin Attack, which creates a point of Wi-Fi fake through which users log on using the password of the original Wi-Fi network.