iziToast is an elegant, responsive, flexible and lightweight notification plugin with no dependencies. All modern browsers are supported (Tested in Chrome, Firefox, Opera, Safari, IE10+ and Edge)
humane.js is a simple, modern, framework-independent, well-tested, unobtrusive, notification system.
Utilizes CSS transitions when available, falls back to JS animation when not. Includes mobile support.
Notyf is under MIT licence.
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