Top 5 ssid open source projects

Probe Request sniffer + Wigle

Peanuts is a free and open source wifi tracking tool. Based on the SensePosts Snoopy-NG project that is now closed.

Get your device ip address, router ip or wifi ssid

Display the currently connected WiFi name (SSID) in the menu bar on macOS

This script allows you to have the best configuration of your DNS when switching from one Wi-Fi to another.