Instabridge - Crowdsourced free wifi (now on Android)
WiFi Map - A crowdsourced list of routers and passwords
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
wifiphisher - Fast automated way to get the password to a WPA wifi network
Wiman - Browse over 70 million free mobile WiFi hotspots
WifiMapper - Find free WiFi anywhere in the world