Windows: Press `Win + R`, type `cmd`, press `Enter`, type `ipconfig`, press `Enter`
Windows: In Command Prompt, look for `IPv4 Address` (and optionally `IPv6 Address`)
macOS: Open `System Settings`, go to `Network`, select your connection, view `IP Address`
macOS (Terminal): Open Terminal, type `ipconfig getifaddr en0` (Wi‑Fi) or `ipconfig getifaddr en1` (Ethernet), press `Enter`
Linux: Open Terminal, type `ip a`, press `Enter` (look for `inet` under the active interface)
Linux (alternative): Type `hostname -I`, press `Enter`
iPhone/iPad (iOS): Open `Settings`, tap `Wi‑Fi`, tap the `i` next to your network, view `IP Address`
Android: Open `Settings`, tap `Network & Internet` (or `Connections`), tap `Wi‑Fi`, tap your network, view `IP Address`
Router (local network): Check the router label or admin page (often under `LAN` or `DHCP Clients`)
Public IP (internet): Use `what is my ip` in a browser or visit `https://ifconfig.me`