Access Code Directly

On any Pen, you can access the code that was written in one of the code panels by adding extensions to the Pen’s URL. This is handy for things like linking the CSS from one Pen to another Pen. These URLs should not be used in production outside of CodePen.

For instance, here’s a Pen URL:
https://codepen.io/chriscoyier/pen/gHnGD

You can access the HTML, CSS, and JavaScript at these URLs:
https://codepen.io/chriscoyier/pen/gHnGD.html
https://codepen.io/chriscoyier/pen/gHnGD.css
https://codepen.io/chriscoyier/pen/gHnGD.js

But actually, SCSS was used to create that Pen. The .css URL shows you the processed CSS. To access the SCSS directly, you’d use:
https://codepen.io/chriscoyier/pen/gHnGD.scss

Depending on the Pen preprocessor options, this is what you have access to:

	If a Pen is…	Raw Code	Preprocessed Code
HTML	Raw HTML	.html	N/A
	Markdown	.markdown	.html
	Slim	.slim	.html
	HAML	.haml	.html
CSS	Raw CSS	.css	N/A
	Sass	.sass	.css
	SCSS	.scss	.css
	Less	.less	.css
	Stylus	.stylus	.css
	PostCSS	.postcss	.css
JS	Raw JS	.js	N/A
	CoffeeScript	.coffeescript	.js
	LiveScript	.livescript	.js
	TypeScript	.typescript	.js
	Babel	.babel	.js

Screenshots for Each Pen

Large Image Preview
https://codepen.io/USERNAME/pen/SLUG/image/large.png

Small Image Preview
https://codepen.io/USERNAME/pen/SLUG/image/small.png

Editor Layout

To open the Pen Editor in a particular layout…

• Editors on left = ?layout=right
• Editors on right =
• Editors on top =

There is also an editors param that controls which editors are open:

https://codepen.io/USERNAME/pen/SLUG/?editors=1010

In the four digit number (e.g. 1010), 1 is open, 0 is closed. The first digit is the HTML editor, second is the CSS editor, third is the JavaScript editor, and the fourth is the console.