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CodePen icon

CodePen

 117 likes

CodePen is a communal front-end development platform providing real-time HTML, CSS, and JavaScript previews. Users can build projects, test code, and enhance skills through challenges. Features include Presentation Mode for conferences and a vast active community for sharing and discovery.

Auto Updating Previews: As you code, the preview updates automatically. Unless you don't want it to.

License model

  • Freemium • Proprietary

Application types

Country of Origin

  • US flagUnited States

Platforms

  • Online
Build Entire Projects: Projects is the most powerful feature of CodePen. It's a full blown IDE right in the browser, with automatic preprocessing, drag and drop uploading, live previews, website deployment, and much more.
Support For the Way You Code: The CodePen Editor is highly customizable. There is autocomplete and Emmet for speed and accuracy. Plus you can set up smart defaults for starting new work.
+4
Keep Your Pens Private: Nobody can see your private stuff until you want them to, because they are at secret unguessable, non-searchable, non-indexable URLs.
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5 / 5 Avg rating (1)
117likes
1comment
67alternatives
0news articles

Features

Suggest and vote on features

Properties

  1.  Support for Themes

Features

  1.  Live Preview
  2.  Running code
  3.  Sandbox
  4.  HTML/CSS/JS rendering
  5.  Cloud based
  6.  Code Formatting
  7.  Autocompletion
  8.  Syntax Highlighting
  9.  No registration required
  10.  Extensible by Plugins/Extensions
  11.  Support for MarkDown
  12.  Dark Mode
  13.  Real time collaboration
  14.  Script execution
  15.  Easy readable viewpoints
  16.  Javascript scripting
  17.  React
  18.  Lodash integration
  19.  Live css editing
  20.  Pastebin
  21.  Support for Javascript
  22.  NPM
  23.  Support for HTML5
  24.  Vue.js support
  25.  Support for ReactJS

 Tags

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CodePen information

  • Developed by

    US flagCodePen

  • Licensing

    Proprietary and Freemium product.

  • Pricing

    Subscription ranging between $8 and $26 per month + free version with limited functionality.

  • Alternatives

    67 alternatives listed

  • Supported Languages

    • English

AlternativeTo Categories

Development, Online Services

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Our users have written 1 comments and reviews about CodePen, and it has gotten 117 likes

CodePen was added to AlternativeTo by s_lysenko on Dec 1, 2012 and this page was last updated Mar 14, 2025.

Comments and Reviews

   
 Post comment/review
Top Positive Comment
Kagerjay
★
★
★
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•Apr 19, 2018
0

Codepen has a really big library of code snippets to get ideas from

My favorite tool on codepen right now is the projects tool. I needed to make a multipage ecommerce front-end framework written with a SCSS / PUG compiler that live-reloads changes instantly. After wasting too many hours trying to set up webpack / flavor of the day tool codepen works off the bat.

[Edited by Kagerjay, April 19]

What is CodePen?

CodePen is a communal platform for front-end designers and developers. It allows users to create websites, display projects, construct test cases, and discover new ideas. Users can develop entire projects or test specific code features and animations. CodePen Challenges offer opportunities to enhance skills and gain recognition. Users' work is encouraged to be shared, creating a globally active front-end community. The platform's Presentation Mode allows users to present their code at conferences. Known as Pens, CodePen provides real-time previews for HTML, CSS, and JavaScript. It can be used for showcasing creations, learning, testing for bug reporting, trying new technologies, and building future components. All activities are saved on CodePen, and with over 1.8 million+ users, there is a vast amount of work to explore and share.

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