Vex is a modern dialog library which is highly configurable, easily stylable, and gets out of the way. It's tiny, has a clear and simple API, works on mobile devices, and can be customized to match your style in seconds.
In this tutorial you are going to build a cross-browser, custom confirm dialog in the form of an easy to use jQuery plugin. You can choose the text, buttons, and actions that will be executed when they are clicked.
jui_alert is a jQuery plugin, provides simple notification with timeout and close button. jQuery UI themes compatible and with localization support.
Pines Notify is a notification plugin, designed to provide an unparalleled level of flexibility, while still being very easy to implement and use.
Pines Notify uses either Bootstrap or jQuery UI for styling, which means it is fully and easily themeable
Simple Modal is a small plugin to create modal windows. It can be used to generate alert or confirm messages with few lines of code.
Simple Modal is not a lightbox although the possibility to hide parts of its layout may partially make it similar.
Avgrund is a jQuery plugin for modal boxes and popups. It uses interesting concept showing depth between popup and page. It works in all modern browsers and gracefully degrade in those that do not support CSS transitions and transformations (e.g. in IE 6-9 has standard behavior).
Freeow! is a plugin for making Growl-like alerts or message boxes on your website. You can customize the look and animation of Freeow! each time a message box appears, and you can alter other options such as whether or not to have the message box hide itself automatically.
jQuery Ambiance allows you to create notifications on the fly by just calling the function and providing some information
FBModal is a jQuery plugin that is the first Facebook replica modal dialog. FBModal provides a simple ways to invoke a modal dialog.
An alert alternative for jQuery that looks good. Apprise is a very simple, fast, attractive, and unobtrusive way to communicate with your users. Also, this gives you complete control over style, content, position, and functionality.
Apprise is, more or less, for the developer who wants an attractive alert or dialog box without having to download a massive UI framework.
Sticky is a simple notification system that allows you to send such messages with ease, and class. Quickly notify a user of software updates, process completions, or annoy them with registration reminders.
Display text, html content, images and ajax requests with 5KB code.
noty is a jQuery plugin that makes it easy to create alert, success, error and confirmation messages as an alternative the standard alert dialog. The notifications can be positioned at the top, topCenter (like GMail), bottom, centre, top left or top right. There are lots of other options in the API to customise the text, animation, speed, buttons and much more.