CodePen is described as 'A communal platform for front-end development offering real-time previews, project building, and showcases, enhancing skills through challenges' and is a very popular Code Editor in the development category. There are more than 50 alternatives to CodePen, not only websites but also apps for a variety of platforms, including Self-Hosted, Linux, Mac and Windows apps. The best CodePen alternative is jsFiddle, which is free. Other great sites and apps similar to CodePen are Replit, Firebase Studio, Qoder IDE and CodeSandbox.
Currently this application supports eleven types of scripting languages and will add more in the future. Also, we have added lots of examples in this application for better understanding. The speed of this application depends on the device used by the user.
Test HTML / JavaScript / CSS snippets with real-time preview. You could also add libraries (jQuery, YUI etc.).
HtmlSave.com help you to save and host your HTML files online and give Rendered HTML link. This service is providing a simple playground for playing with HTML codes. This website is really helpful for testing how an HTML file will look in a browser.
HTCSJS is an online HTML, CSS and JavaScript coding tool. It functions on mobile (unlike JSFiddle), and allows any* external resources. It also allows pasting on iOS, unlike many others. http://shhnowisnottheti.me/demo/
*varies b/c it uses data URLs
Aaditor is World's first HTML editor with drag layout. Aaditor has a function of full screen result. You can change the layout of Aaditor according to your wish. All the html,css and js boxes of Aaditor can be dragged , resized and minimized .
Agiphi Studio is an AI-native builder platform that empowers developers, startups, and enterprises to design, test, and deploy AI copilots, intelligent workflows, and data-driven applications, all in one unified studio.
Online HTML Viewer is a browser-based tool for writing, editing, and previewing HTML and CSS code in real time , no setup or login required.
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App form only. Doesn't support many languages.