10 Handy Tools for Testing Code Snippets

Web developers should always have a place to quickly test their code or to work on an idea before going live. As time goes by, more and more online code editors are created to cater to coders and developers so they can quickly test their code from any computer with Internet access.

In today’s article, I’m going to present to you some handy free code playgrounds and sandboxing tools that you can use for testing, debugging, and sharing your code snippets. These tools allow you to combine HTML and CSS, while some even let you combine JavaScript for creating and sharing coding samples.

Let’s jump right in!





PractiCode is a handy tool for testing and editing your code snippets. It comes with support for HTML, CSS and VBScript. This tool is meant to be used alongside Land of Code’s guides and tutorials for practicing and testing code snippets while reading their material but you can use it for your own projects, as well.




This code snippets playground is a favorite of many web developers. In fact, it’s one of the most popular options available online. It’s a great tool for testing bugs, collaborating, and finding new inspiration for your next project. It lets you create “pens”, which are sets of HTML, CSS, and JavaScript. You can display these pens on your profile, get feedback, and continue to edit the pens any time you like.


JS Bin


JSBin is a browser-based user interface where you can enter your HTML markup, CSS, or JavaScript; and get feedback based on your code. What’s more, you can optionally include any number of frameworks into your on-screen code, so you can leverage the framework’s capabilities. You’ll benefit from the real-time feedback you get from the updates you make. Another key feature is that you can create your own account on JSBin so you can save your bins for future reference and sharing. It’s easy to register an account and you can even boost your GitHub credentials via GitHub’s OAuth functionality.




This online compiler and debugging tool lets you compile your source code and execute it on the Web, in over 60 programming languages.




CSSDesk is a simple yet powerful web application that focuses on HTML and CSS. It comes in three resizable sections: HTML, CSS, and live preview. You can choose to change the background of the preview pane, which will come in handy if you’re having a hard time scoping out the outcome of your HTML/CSS work due to low foreground/background contrast. Additionally, you can turn on/off the syntax highlighting functionality. It’s easy to use and set up. Simply load the page and start creating!




Codepad is an online compiler and interpreter for server-side and software programming languages like C++, PHP, and more. The output screen displays error messages associated with your code. Any programmer or software engineer who needs to collaborate and debug complex programs will find this tool handy.




This is another popular tool for testing code snippets. It allows you to write HTML5, CSS3, and JavaScript, and then test them in real time. The code-hinting features guides you to write HTML5 and CSS3 in proper syntax, and quadrant panels will help you adjust your HTML5, CSS3, and JavaScript window sizes according to your needs.




JSFiddle is a one of the best and most popular free tools for testing code snippets. It comes loaded with cool features and supports the inclusion of libraries like jQuery and Prototype. You can also add external resources to JavaScript/CSS files into each testing document. Amazingly, this tool also comes with support for XHR Ajax, where you can pass data back and forth between the server and the client browser window.




This tool lets you share HTML5, CSS, and JavaScript. It’s a coding community for web developers and designers, markup and frontend engineers, as well as JavaScript enthusiasts. You can test your codes here in real time, and you can save your codes online, as well as show them to the public as you work.




Dabblet is a handy tool for testing code snippets. It uses -prefix-free so you won’t have to add any prefixes in your CSS code. You can also save your work in GitHub gists, embed it into other sites, and even share it with others. You can easily change things up with the controls. The split can be horizontal, vertical, or taken out completely. It also features a unique “behind code” mode where you result serves as the background for the coding area.

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