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

Diagramo
Modelio
UML Designer
Yakindu Statechart Tools
ARIS Express
IYOPRO
MagicDraw
BOUML : An UML toolbox running under Linux, MacOS X and Windows to specify and generate code in C++, Java, Php, Python, Idl and MySQL

Which is more popular?
Based on our record, CodePen seems to be a lot more popular than BOUML. While we know about 513 links to CodePen, we've tracked only 1 mention of BOUML.
Website, pricing, platforms and company facts side by side.
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| Website | codepen.io | bouml.fr |
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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 BOUML yet.
Walkthroughs and reviews on video.
What Is Codepen?
More videos
bouml을 이용한 모델링과 코드 생성
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CodePen and BOUML. 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.
BOUML is a free UML2 tool which includes modeler. This helps you to specify and generate code in C++, Java, Php, Python, and MySQL.
BOUML is an UML 2 tool box including a modeller that allows users to specify and generate code in C++, Java, Idl, Php, Python and MySQL. It runs on Windows, Linux and MacOS X. BOUML is very fast and doesn't require...
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
Markdeep[0] from Casual Effects has a way of drawing diagrams using extended markdown. I used it to write this document with two diagrams: https://loan-free-ed.neocities.org Other tool I like are PlanetUML[1], BoUML[2] and Modellio[3](it... - Source: Hacker News / over 5 years ago
When comparing CodePen and BOUML, you can also consider the following products.

Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
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Diagramo is an online flowchart software - diagrams (create, edit and share)
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Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI.
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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.
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UML Designer provides a set of common diagrams to work with UML 2.5 models.
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