Angular ngIf directive is used when you want to display a view or a portion of a view only under specific circumstances. The Angular ngIf directive is used to insert or remove an element according to the true/false condition.

The ngIf directive in Angular is used to conditionally render or remove an element or a portion of the HTML template based on the truthiness of an expression. This allows developers to dynamically control the visibility of elements based on the state of the application or specific conditions. When the expression provided to ngIf evaluates to true, the element or portion of the template is rendered in the DOM; otherwise, it is removed from the DOM. This can be particularly useful for showing or hiding UI elements, rendering content based on user authentication, or handling conditional logic within templates.