As a developer, we want to offer to the client a product that works perfectly. Of course we cannot neglect the style of an application. Around the web you'll find a lot of notification plugins that will do the hardjob for you greatly simplifying the development time.
NOTY is a jQuery plugin that makes it easy to create alert - success - error - warning - information - confirmation messages as an alternative the standard alert dialog. Each notification is added to a queue. (Optional) The notifications can be positioned at the: top - topLeft - topCenter - topRight - center - centerLeft - centerRight - bottom - bottomLeft - bottomCenter - bottomRight
Very simplistic and easy to use.
Toastr is a jQuery plugin, the goal is to create a simple core library that can be easily customized and extended.
The notifications are non-blocking, the position, animation and theme are customizable.
AmaranJS is a minimalist notification library.Easy to create, notification animations and includes many themes, easy to adapt your own themes and have callbacks. Highly customizable.
The alert messages will appear on the top-right of the screen (windows 8 style).
Notie.js have a interesting design and is very flexible and customizable. It includes confirm and input features.
ohSnap is a simple notification jQuery/Zepto library designed to be used in mobile apps. Really simplistic but with good performance.
VEX is a modern dialog library which is highly configurable and easy to style, developed by HubSpot. With a cool design, good performance this plugin gets the third place in the top. It has a clear and simple API, works on mobile devices, and can be customized to match your style in seconds.
2. Sweet Alert
A special feature of sweet alert is that we can trigger an ajax call and await till it is finished, this allows to make the asynchronous handle with the user very easy and comfortable. SweetAlert can easily be themed to fit your site's design.
Alertify.js have i18n and RightToLeft Support, have many themes and is customizable to the core.