
JSFiddle
CodeSandbox
GitHub
replit
VS Code
Pastebin.com
JS Bin
A front end web development playground.

Bootstrap
Foundation
Materialize CSS
Semantic UI
Bulma
UIKit
Tailwind CSS
MUI is a lightweight HTML/CSS/JS framework that follows Google's Material Design guidelines

Which is more popular?
Based on our record, CodePen seems to be more popular. It has been mentioned 513 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codepen.io | muicss.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of MUI yet.
Walkthroughs and reviews on video.
What Is Codepen?
More videos
Epic 7: Should You Pull For Mui? Review & My Final Verdict!!
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CodePen and MUI. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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.
Codepen is a social development environment that allows developers to showcase their work and experiment with HTML, CSS, and JavaScript in a collaborative space. Codepen’s focus on visual and interactive development...
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.
MUI, previously known as Material-UI, is a React UI framework that adheres to Google's Material Design guidelines. Its comprehensive suite of pre-built components and powerful theming capabilities make it an excellent...
MUI is a lightweight CSS framework like Bootstrap and a Bootstrap competitor that incorporates all the essential code for utilizing MUI components on the web and across email clients. Additionally, it is also...
Recommendations tracked on public social media and blogs since March 2021.


> I vividly remember IE and many hacks to have css elements properly working in it… The common advice now is to only use CSS that is supported in the last two major versions of each major browser. You can check any css property's support... - Source: Hacker News / about 1 month ago
Thank you, heartfelt... For sharing an artwork, a miracle! Just in case, have you considered publishing the work at platforms as CodePen, where genius Artists/People express their art, too, as you?: // https://codepen.io/. - Source: Hacker News / 2 months ago
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 / 11 months ago
Tracking MUI since Mar 2021.
When comparing CodePen and MUI, you can also consider the following products.

Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
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Simple and flexible HTML, CSS, and JS for popular UI components and interactions
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The most advanced responsive front-end framework in the world
Compare Foundation to CodePen or MUI:

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.
Compare GitHub to CodePen or MUI:

A modern responsive front-end framework based on Material Design
Compare Materialize CSS to CodePen or MUI: