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👋 CodePen is a social development environment. At its heart, it allows you to write code in the browser, and see the results of it as you build. A useful and liberating online code editor for developers of any skill, and particularly empowering for people learning to code. We focus primarily on front-end languages like HTML, CSS, JavaScript, and preprocessing syntaxes that turn into those things.

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We're trying to make CodePen a happy and healthy place for front-end designers and developers and the people looking for them, while also being a damn fine place to code. ❤️

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Alex Vazquez


Alex is a full stack developer. Alex does JavaScript development for CodePen, both front end and back, as well as Rails and just about everything else.

@alexquez on Twitter and @quezo on CodePen.

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Chris Coyier


Chris is a front-end developer and designer. He writes a bunch of HTML, CSS, and JavaScript and shakes the pom-poms for CodePen.

@chriscoyier on Twitter and @chriscoyier on CodePen.

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Dee Vazquez

Dee is a full stack developer who started her career in finance. She's been on a mission to learn every part of the stack and can jump from Rails to React to Go. She also uses her Excel skills to manage our finances.

Dee is @deequez11 on Twitter and @deequez on CodePen.

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Marie Mosley

Marie wears a lot of hats. She is our documentation lead, customer support maestra, editor, and community manager.

Marie is @mariemosley on CodePen.

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Rachel Smith

Rachel is a full stack'er in Australia. Not only a creative and talented designer and developer, but a great technical writer and wonderful and encouraging CodePen community member.

Rachel is @rachsmithtweets on Twitter and @rachsmith on CodePen.

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Stephen Shaw

Stephen is a designer/developer residing in Houston. He likes to build animations with CSS & JavaScript, often while co-hosting the collaborative coding livestream, @keyframers.

Stephen is @shshaw on Twitter and @shshaw on CodePen.

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Robert Kieffer

Robert is a full-stack dev with a penchant for open-source work. He dwells in the murky depthsmurky depths of JS, occasionally surfacing to terrorize the locals and steal their livestock. (You've been warned.)

Robert is @broofa on all the thingz.