Breakpoint

F12->Breakpoint teaches the browser's developer tools by making them the only way to win. Each case hands you a deliberately broken web app, and you fix it with the same inspector professionals use: Console, Elements, Application, Network, Sources and Performance. Nothing is simulated.

17 cases across 5 sectors, from defining a missing function to clearing an invisible layer that swallows your clicks, reading a value at a breakpoint and tracing a failed request. Includes a teacher kit for adding your own cases.

Requires a desktop computer with Chrome or Edge. English and Polish. No timers, no account, progress saved on your device.