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CodePen VS i3

Compare CodePen VS i3 and see what are their differences

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CodePen logo CodePen

A front end web development playground.

i3 logo i3

A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
  • CodePen Landing page
    Landing page //
    2018-09-30
  • i3 Landing page
    Landing page //
    2021-09-19

CodePen features and specs

  • Real-time Collaboration
    Developers can collaborate with others in real-time, making it easy to work on projects with teammates or seek help from the community.
  • Immediate Visual Feedback
    CodePen allows you to see the results of your code as you write it, which is highly beneficial for learning and debugging.
  • Integrated Development Environment (IDE)
    CodePen provides a comfortable and feature-rich online IDE environment with syntax highlighting, autocomplete, and more.
  • Community-Driven
    Users can share their work with the CodePen community, receive feedback, and explore a wide range of projects created by others.
  • Extensive Resources
    CodePen offers a wealth of examples and templates for various web development tasks, making it a useful resource for learning and inspiration.
  • Cross-Device Accessibility
    Being an online platform, CodePen can be accessed from any device with an internet connection, making it convenient for developers on the move.

Possible disadvantages of CodePen

  • Limited Offline Functionality
    Since CodePen is primarily an online tool, it requires an internet connection for most of its features to work, limiting its usefulness in offline environments.
  • Performance Constraints
    Complex or resource-intensive projects may not perform as well on CodePen as they would in a full-fledged local development environment.
  • Subscription Costs
    While many features are free, advanced functionalities and additional storage options require a paid subscription, which may not be ideal for all users.
  • Limited Backend Capabilities
    CodePen is primarily designed for front-end development, so it offers limited support for backend technologies, making it less suitable for full-stack or server-side development.
  • Dependency Management
    Managing dependencies and libraries can be cumbersome compared to local development environments which have better tools for this purpose, like npm.
  • Security Concerns
    Sharing projects with the public can expose your code and assets to unauthorized use, posing potential intellectual property and security risks.

i3 features and specs

  • Efficient Window Management
    i3 allows for highly efficient window management using a tree data structure, making it easy to snap windows into grids and manage multiple applications simultaneously.
  • Lightweight
    i3 is deliberately simplistic and lightweight, which allows it to run efficiently on older hardware or systems with limited resources.
  • Customizability
    Users can extensively customize keybindings and behavior through a plain text configuration file. This allows for a personalized workflow.
  • Keyboard-Centric
    i3 is designed to be used primarily through keyboard shortcuts, which can lead to increased productivity for advanced users.
  • Scriptability
    i3 supports various scripting languages through its IPC (Inter-process Communication) interface, enabling automation of complex workflows.
  • Community and Documentation
    i3 has strong community support and extensive documentation, making it easier for new users to learn and troubleshoot issues.

Possible disadvantages of i3

  • Steep Learning Curve
    New users may find i3 difficult to learn and configure, especially if they are accustomed to traditional desktop environments.
  • Lack of GUI Configuration Tools
    i3 relies heavily on manual edits to text files for configuration, lacking user-friendly graphical interfaces for setup and customization.
  • Limited Out-of-the-Box Features
    i3 does not come with many built-in features available in more comprehensive desktop environments, such as app launchers or system tray support, requiring additional setups.
  • Compatibility Issues
    Some applications may not play well with tiling window managers like i3, requiring workarounds or alternative software choices.
  • Minimal Default Appearance
    Without customization, i3 offers a very minimalistic and barebones visual experience, which may not be appealing to all users.

Analysis of CodePen

Overall verdict

  • Yes, CodePen is considered a good platform for web developers, both beginners and experienced. It offers a wide array of features that facilitate creative development and community engagement.

Why this product is good

  • CodePen is a popular online code editor and community platform for front-end developers to experiment with creating and sharing HTML, CSS, and JavaScript snippets. It provides an easy-to-use interface and real-time previews, making it a valuable tool for learning, prototyping, and sharing web development work. It also fosters a community where developers can showcase their projects, receive feedback, and learn from each other.

Recommended for

  • Front-end developers who want to quickly prototype and test web designs.
  • Beginners in web development looking to learn and receive feedback from the community.
  • Educators and students interested in a platform to showcase projects and collaborate.
  • Developers who want to explore creative coding and share their work with a community.

Analysis of i3

Overall verdict

  • Yes, i3 is considered a very good window manager for users who appreciate its minimalist and efficient approach. Its lightweight design keeps resource usage low, which can improve performance on less powerful machines.

Why this product is good

  • i3wm is known for its simplicity, speed, and efficient use of screen space, making it a popular choice among power users and developers who prefer a keyboard-driven workspace. Its tiling feature allows for the seamless organization of multiple windows, enhancing productivity and multitasking. Furthermore, it is highly customizable, allowing users to tailor their workspace to their specific needs.

Recommended for

    i3wm is recommended for advanced users, developers, and anyone who prefers a keyboard-centric interface. It is ideal for users who like to customize their environment extensively and are comfortable with configuring software via text files. New users with a willingness to learn may also find it rewarding.

CodePen videos

What Is Codepen?

More videos:

  • Review - Learn to use CodePen from a co-founder of CodePen
  • Review - Using CodePen For Inspiration & Learning

i3 videos

30k Miles with the BMW i3 - End of Lease Review

More videos:

  • Review - 2016 BMW i3 - Review and Road Test
  • Review - 2018 BMW i3s Range Extender (REx) Review - The Future Of Cars?
  • Demo - Gaming With Intel's Core i3 9100F - The First Turbo Boosted Desktop i3
  • Review - The best EV for the money? Used BMW i3 Review

Category Popularity

0-100% (relative to CodePen and i3)
Text Editors
100 100%
0% 0
Window Manager
0 0%
100% 100
Programming
100 100%
0% 0
Linux
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare CodePen and i3

CodePen Reviews

Best Forums for Developers to Join in 2025
Codepen is a social network for developers to show off their work, ask and answer questions, and exchange ideas. It's like a Reddit for coding and design, with a large community of talented web developers.
Source: www.notchup.com
Top 10 Developer Communities You Should Explore
Codepen is a social development environment that allows developers to showcase their work and experiment with HTML, CSS, and JavaScript in a collaborative space. Codepenโ€™s focus on visual and interactive development makes it an excellent community for front-end developers and designers.
Source: www.qodo.ai
8 Best Replit Alternatives & Competitors in 2022 (Free & Paid) - Software Discover
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.
Best Online Code Editors For Web Developers
Probably the most popular online code editor. CodePen is fast, easy to use, and allows a web developer to write and share HTML/CSS/JS code online.
Source: techarge.in
Top 25 websites for coding challenge and competition [Updated for 2021]
CodePen is a cool online IDE that allows you to write code in your browser and see the result just as you build it. CodePen challenges is a place for leveling up your skills by building things. Each week, new challenges appear for you to tackle, and the best โ€œPensโ€ get picked.

i3 Reviews

Top 13 Best Tiling Window Managers For Linux In 2022
Sway is a tiling Wayland i3-compatible window manager that dynamically arranges app windows to rationally maximise desktop space. It is free, open-source, and lightweight. By default, it arranges windows in a grid and supports practically all of the i3 commands.
Source: www.hubtech.org
Top 10 Best Desktop Environments in 2020
i3-wm is one of my most loved standalone window managers, qualifying it to easily fit under the desktop environment list! The configuration is just very easy, and you can change everything that you see on screen. This includes what information you see on the bottom panel, how windows behave, and keyboard shortcuts to move, align, and set up windows on the screen.
13 Best Tiling Window Managers for Linux
Sway is a free, open-source, and lightweight tiling Wayland i3-compatible window manager that automatically arranges app windows to logically maximize desktop space. It arranges windows into a grid by default and supports almost all the commands included in i3.
Source: www.tecmint.com
5 Great Tiling Window Managers for Linux
I begun testing i3 just this week. I was always fascinated by the Tiling WMโ€™s as they seem really light on system resources and functional. To my surprise , although i3 is really easy to customize, and works really well (at least for my needs) , I found that it isnโ€™t really that lightweight. I had Mate desktop environment use the same amount of RAM. Maybe I was mislead to...

Social recommendations and mentions

Based on our record, CodePen should be more popular than i3. It has been mentiond 511 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

CodePen mentions (511)

  • Haunted Loop: A Pure-CSS Halloween Scene
    Embed on DEV: If you prefer CodePen embed, create a Pen with that HTML and add to the post as: {% codepen https://codepen.io//pen/ %}. - Source: dev.to / 8 months ago
  • Top 10 Free Tools Every Web Developer Should Know
    CodePen is where creativity meets frontend code. You can write HTML, CSS, and JavaScript and see results instantly in the browser. - Source: dev.to / 11 months ago
  • What is the Most Effective AI Tool for App Development Today?
    For those preferring agent-based approaches, Replit Agent shines. Khris Steven, Founder of KhrisDigital Marketing, notes, "You can simply describe what you want your app to do in plain English, and Replit Agent will generate the code and deploy it." This natural language interface fosters collaboration, turning ideas into deployable apps in minutes. - Source: dev.to / 11 months ago
  • How I Built a Responsive Dark Mode Toggle Using Vibe Coding?
    After wrapping everything up, I hosted the final toggle on CodePen so others could test it out and learn from the approach. What started as a simple idea became a complete, responsive, and accessible component, thanks to a process that blended creativity with automation. - Source: dev.to / 11 months ago
  • Building an Office with 900+ Lines of CSS: My Frontend Challenge Journey
    For this CSS Art challenge, I wanted to step out of my comfort zone. While I've used CSS extensively for web apps and websites, I had never built an art piece purely with CSS. I started by diving into codepen and other inspiration sites, getting a feel for what was possible. Eventually, a rough sketch of an office atmosphere in Excalidraw became my guiding vision. My goal was to depict a typical office scene,... - Source: dev.to / 11 months ago
View more

i3 mentions (92)

  • Why I traded my custom "Opinionated Linux" for Omarchy
    I've been using Omarchy as my main setup since June 26, 2025, the day DHH released the first version. Before that I had my own custom Opinionated Linux, mclovin-ARCHived: an Arch + i3wm installer set up exactly the way I liked. It was total control over the OS: me deciding what goes in, keeping every piece (i3wm, polybar, picom, kitty, dotfiles) up to date and making sure they all talked to each other for the... - Source: dev.to / 2 months ago
  • Omarcacca
    Then few years back, in 2015, I got shown i3wm and used it on my ubuntu-netinstall until 2020, then I switched to Budgie and my personal laptop has been using that ever since. - Source: dev.to / 5 months ago
  • Automatic Visual Feedback for System Volume Change in I3wm via Dunst
    I switched to the i3 tiling based window manager. Because it's a whole different environment and thinking, it was very different from what I was used to. The volume buttons were working on my keyboard, but I didn't get any visual feedback. Furthermore, the volume percentage could go down below zero and increase up to more than hundread percent. There were times when I was confused why the keys stopped working, but... - Source: dev.to / about 2 years ago
  • "We understand" ;)
    This is partially why I use tools like i3 (/ sway). I like the tool; it works extremely well for me; the design has stayed the same for 20 years; there's no profit motive to come along and fuck everything up. It just works. It is boring in the best way possible. Source: over 2 years ago
  • what machines have you used for development, and what do you prefer?
    I use MacBook Pro (Retina, 15-inch, Mid-2014) with Manjaro as OS using i3 as a window manager. It isn't perfect, but I'm thrilled with it. I have been a Mac OS user for the last 15 years and wouldn't change what I have now for a Mac OS because I don't need more than what I'm using for development. Source: about 3 years ago
View more

What are some alternatives?

When comparing CodePen and i3, you can also consider the following products

JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

Sway - Sway is a drop-in replacement for the i3 window manager, but for Wayland instead of X11.

CodeSandbox - Online playground for React

dwm - dwm is a dynamic window manager for X. It manages windows in tiled, monocle and floating layouts. All of the layouts can be applied dynamically, optimising the environment for the application in use and the task performed.

GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.

Openbox - Openbox is a highly configurable, next generation window manager with extensive standards support.