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The best place to build, test, and discover front-end code.

CodePen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn and debug, and find inspiration.

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Get work done quicker by building out entire projects or isolating code to test features and animations. Want to keep it all under wraps? Upgrade to a PRO account to keep your work private.

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Want to upgrade your skills and get noticed? Participating in CodePen Challenges is a great way to try something new. We frequently feature these Pens on our homepage and across social media!

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Become a part of the most active front-end community in the world by sharing work. Presenting at a conference? Show your code directly in the browser with Presentation Mode.

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Each team and team member gets all the features of a PRO membership. That means the Team can do things like upload Assets, use features like Collab Mode, Professor Mode, Presentation Mode, and Live View, and apply custom CSS to Posts, Profiles, and Embeds.

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