10 best code playgrounds in 2021



by Aratrika Dutta


22 October 2021

The online playground provides the coding environment for developers to experience most things from the moment the page loads. It uses all web technologies such as HTML, CSS, Javascript or PHP to provide developers with innovative and meaningful web applications. The playground is the platform that helps them build apps as well as advanced features. With this, they can edit the code online, preview the work at each step, debug the error as well as test the cases of the snippets. Developers can also share the code and see the changes if they made it in the code. Its developers have combined web technology to improve its capabilities and functionality so that it can work with all platforms and can build all types of websites and applications as well. This article lists the 10 best coding playgrounds for web developers in 2021.

1.CodePen

CodePen is a web front-end playground. It’s all about inspiration, education and sharing. The service highlights popular demos (“Pens”) and offers advanced features such as sharing and embedding. CodePen is ideal for creating a small test case to demonstrate and resolve a bug.

2. CSSDesk

CSSDesk is an online CSS sandbox. It allows users to quickly test CSS snippets and watch the result appear live. There are line numbers and syntax highlighting appears in the text box as you type. One of the best things is that it also allows users to share their code with others.

3. Google’s code playground

Google’s Code Playground is a web-based tool that allows web developers to try all the APIs provided by Google, edit the code, and see the results. Google’s Code Playground lets you play without opening an external editor, and all APIs are loaded for you in the Choose an API area.

4. JS Recycle Bin

It provides an environment for building applications and helps to test HTML and CSS snippets. It allows you to modify the code and you can also debug the code if you find an error. Once you’ve finalized the code, you can send it to a peer for review.

5. JSF medium

jsFiddle is a shell editor that makes it easy to write JavaScript code by creating a custom environment based on popular JS frameworks. You can select the framework & version of your choice (MooTools, jQuery, Dojo, Prototype, YUI, Glow, Vanilla). Additionally, if there is, you can add a complementary framework like jQuery UI or MooTools. One cool feature is the ability to save and share the created code with a unique generated URL. Optionally, jsFiddle also has an integration feature. It’s an almost perfect platform to try out and share your JavaScript code without the need for a website.

6. Dabblet

Dabblet is an interactive playground for quickly testing CSS and HTML snippets. It uses -prefix-free so you don’t have to add prefixes in your CSS code. You can save your work in Github Gists, embed it in other websites, and share it with others. It currently only supports modern versions of Chrome, Safari, and Firefox. All displayed code belongs to the poster and no license is applied. Dabblet itself is open source software and is distributed under an NPOSL-3.0 license.

7. Editor

Editr is an HTML, CSS, and JavaScript playground that you can host on your server. It is based on ACE Editor. It’s super easy to set up. It supports multiple instances on a single page. The configurations are available through the JS object or HTML attributes. The editor supports 3 layout views: horizontal, vertical and single. The first two are for live editing. The third is for presentation. The publisher is licensed under MIT.

8. Live wave

Liveweave is an HTML5, CSS3, and JavaScript playground and real-time editor for web designers and developers. It’s a great tool for testing, practicing, and sharing your creations. It has resizable panels so you can write your code (or weave, as we call it) the way you want. Liveweave also incorporates contextual code hints for HTML5 and CSS3 tags / attributes, which makes life much easier.

9. Playground D3

The D3.js Playground is designed to let you play with the D3.js library interactively. Each modification made (which results in an invalid code) affects the playing field in real time. Because CSS is such an important part of visualizations, you can edit CSS live as well.

10. HTML5 Playground

The HTML5 Playground includes a library of snippets that you can explore to see HTML5 in action. They include a few basic start-up examples, such as using the HTML5 Doctype and the audio tag (which is a good demonstration of playback functionality in a compatible browser nonetheless). There is an interactive form, including HTML5 elements like range and date entries and automated validation of email addresses and websites.

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