Top Alternatives to CodePen

Pastebin.com is a popular web-based service designed for storing and sharing plain text online. It's widely used by developers, system administrators, and anyone needing to quickly share code snippets, log files, or other text-based information privately or publicly.

jsFiddle is a popular online playground for developers to experiment with HTML, CSS, and JavaScript code directly in their web browser, offering a quick and easy way to test frontend ideas.

JS Bin is a powerful online code editor and live pastebin for front-end web development. It allows developers to write, test, and debug HTML, CSS, and JavaScript code directly in the browser, with real-time rendering of results. It supports a variety of preprocessors and provides collaboration features.

ShiftEdit is a versatile, web-based Integrated Development Environment (IDE) designed for web developers. It offers a rich set of features including code editing for various languages, built-in FTP/SFTP access, and seamless integration with cloud storage services like Dropbox and version control platforms like GitHub. Ideal for collaborative projects and development on the go, ShiftEdit provides a comprehensive environment directly within your browser.

Codiad is an open-source, web-based Cloud IDE with a focus on minimalism and ease of deployment. It provides a powerful code editing environment accessible from any modern web browser.

Liveweave is a web-based code playground for front-end development, offering a seamless environment to write, test, and preview HTML, CSS, and JavaScript code in real-time. It's an ideal tool for learning, prototyping, and sharing web snippets.

Plunker is an online platform designed for the rapid creation, collaborative development, and sharing of web development projects directly within your browser. It provides a sandbox environment with live preview and developer tools.

Repl.it is an online integrated development environment (IDE) that allows users to write, run, and debug code in numerous programming languages directly in their web browser. It provides a cloud-based platform for development, collaboration, and learning, eliminating the need for local setup.

Dabblet is an interactive online code playground designed specifically for experimenting with CSS, HTML, and JavaScript. It provides a live preview of your code as you type, making it an excellent tool for web developers to test snippets and share their work.

kodeWeave is a versatile, portable HTML/CSS/JavaScript playground and IDE. It allows developers to write, test, and debug web code directly within the application, offering features like live preview, syntax highlighting, and support for various frameworks.