Timelines Tab

The Timelines Tab contains all of the performance profiling and introspection tools provided by Web Inspector, organized into different timelines each with their own area of interest and specialized interface.

Sources Tab

The Sources Tab is the one-stop shop for all things related to the inspected target’s resources, including dynamic resources from things like XMLHttpRequest or fetch.

Event Breakpoints

Event Breakpoints can be useful when debugging DOM interactions in JavaScript.

Console Command Line API

One of the most useful parts of Web Inspector is being able to generate interactive visualizations of any value in the Console.