Get your easings animations right.

Link here.

Nice Image Blur Plugin

Link here.

Css Animation Basics

Link here.

Want infinite panning and zooming on the webpage ?

Here is a link to a JS library allowing (almost) infinite panning and zooming.

Highlight the points of interest of your products

Link here.

Responsive tables

The tablesaw tool helps you make cool responsive tables with loads of options to integrate to. Check it out once before creating tables for your next project.
Link here.

Put your comments on a side.

Looks very clean and intuitive. Link here.

Charting library using d3.js framework

Link here.

Amazing js library to give superpowers to your css and js! A lot of features with pretty nice documentation.

Link here.

Nice ways to curve your text

Link here.

Authentication techniques in AngularJS

Link here.

Better solution for simple loading gif

Use cross platform spin.js. Link here.

Use java libraries with nodejs

Link here.

Build your own jquery wih modules you require

Link here.

Drag and drop interface builder

If you're looking to startup with your frontend code and quickly want to setup the base with bootstrap, Layoutit is a great way to start with. Link here.

Check if your page is visible currently via javascript

Link here.

Learn how to use flexbox to position elements

Link here.

Extract and manipulate rar files using javascript !

Link here.

Really cool concept of automatically switching to lighter or darker version of an element depending on the brightness of images behind it.

Link here.

A quick 3 minutes introduction to Bower( Javascript Package Manager)

Link here.