notiflix / Notiflix

Notiflix is a dependency-free, secure, and lightweight JavaScript library built with pure JavaScript, offering client-side non-blocking notifications, popup boxes, loading indicators, and more.

Napster2210 / ngx-spinner

Highly customizable Angular loading spinner library with 50+ animations, multiple named spinners, an optional HTTP interceptor for automatic show/hide, MatDialog-safe fullscreen overlays via the Popover API, and one-command ng add setup. Supports Angular 4–22, standalone & NgModule apps.