WiFi Map - A crowdsourced list of routers and passwords
WifiMapper - Find free WiFi anywhere in the world
Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.
Café Wifi Search 🔍 - Find great cafés to work from, worldwide.
Wirepool - Crowdsourced WiFi passwords for everyone 📶
Instabridge - Crowdsourced free wifi (now on Android)