We all have noticed the introduction of a number of online code editors over the years. They provide an online learning environment. The biggest advantage of all these is that you can save much of your time in testing some code parts. Also within minutes, do any experimental work online without wasting your system’s memory by creating new files, taking a proper IDE, etc. Also some of these provide ways to share your finding with others easily. Some of the best online code playgrounds are listed below:
1) JSFIddle
It was one of the earliest online IDEs. Could be used for any basic combination of HTML, CSS and JS testing. They have added much more capabilities over the time.
2) CodePen
One of the best looking tools available. Provides ways to share too. PRO version includes cross-browser testing, pair-programming and teaching options which comes for $9 per month. It also has a community for front-end web development.
3) CSS Deck
CSS Deck too has a large community of developers. You can easily find some useful CSS based utilities on CSS Deck. Pagination Options and Designs, Checkbox Button Designs, Scalable Calendar Icon in HTML5 and CSS3 are only some of them to mention.
4) JS Bin
More JS centric. The best part is, it provides a JS console for the user. It is commonly known as a collaborative JavaScript debugging tool.
5) Dabblet
An interactive editor for CSS and HTML Started with limited features but now has all the supports. The biggest advantage of using it is that you can avoid browser CSS prefixes (-webkit, -moz, -ms, etc) in your code.