JSONMate can create tree-like visual representations of JSON objects, edit JSON objects in a useful way and do other things with data that’s otherwise sometimes too hard to read and edit with in-line editors. You can paste the strings or load them from an external resource.

chat room script for creating chat rooms everywhere.

phpFreeChat doesn’t require a database and doesn’t have to be run on a new browser: it works everywhere with a PHP version larger than 5.3. and if the browser supports jQuery.

phpFreeChat is heavily customizable so you can tweak it to work on your mobile designs as well.

Verlet integration physics engine written in JavaScript.

Verlet.js can handle simulations, composites, particles and constrains. From these you can make just about anything, the sky is the limit. Its parts intertwine very well: for example, you can link particles together so they interact.

randomly arranged responsive gallery with lazy resource loading.

This gallery is useful if you want to create an image gallery which loads the images within the page. It’s well made and elegant, but some more customization options could be there. Least.js uses jQuery for operation.

jQuery plugin for creating super-smooth animations better than jQuery’s .animate() does.

Transit allows animating, rotating, skewing, transforming and much many other things.

It’s also seems easy to use and degrades somewhat gracefully. Although this plugin has merit by itself, it’d be nice to see some unit tests comparing it with jQuery’s animate.

This way of making such menus addresses the most common problems one might encounter in the process of building them.

It’s nothing ground-breaking, for sure, but at the very least it’s interesting to see problem solving in action.

If you want to learn how to build one, GoodUI is a good place to start.

GoodUI lists user interface tips that can help boosting your conversions. You can subscribe to receive updates twice a month, not too painstaking for a professional designer.

P.S. ‘Never take advice from someone who needs it’, says the proverb. The UI of the website is fabulous, so you needn’t afraid of bad advice here!

mmenu strives to create application-like sliding menus. You can configure it to your heart’s liking and probably implement it into the desktop (or joint) version of your website as well.

Chartkick allows making the most common types of charts in seconds, thus allowing you to focus on getting the data, not writing the code.

It works on most browsers, including IE6, which is quite a feat for any modern library.

Basically, the plugin creates as many scrolling windows as you like, allowing to place arrays of content into scrollable goodness.

Windows automatically centers the ‘window’ that takes the most part of the screen, so it’s easy for users to enjoy the full-screen experience this plugin strives to provide.

As a side note, the name of this plugin illustrates that websites like ours here are much in need. Imagine how hard it’d be to find a plugin like this if you hadn’t seen it here – not to mention the problem of actually finding this plugin on Google.