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

TryHackMe
Hack The Box
VulnHub
PwnTillDawn Online Battlefield
PentesterLab
HackThisSite
CodeRed by EC-Council
LetsDefend is a security operation center analysis and response training platform that provides a full lifecycle of learning modules in the form of courses, labs, and exercises to help organizations meet their compliance and cyber-resilience needs.

Which is more popular?
Based on our record, CodePen seems to be a lot more popular than LetsDefend. While we know about 513 links to CodePen, we've tracked only 34 mentions of LetsDefend.
Website, pricing, platforms and company facts side by side.
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| Website | codepen.io | letsdefend.io |
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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 LetsDefend yet.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CodePen and LetsDefend. 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.
We have no reviews of LetsDefend yet. Be the first one to post
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
I'm looking for places that let me experience what it's like to be in a analyst / IR team in order to learn a bit about those roles and found a place called letsdefend.io. Have you tried it? How it was the experience? Would you recomend it? Source: almost 3 years ago
Has anyone else had any issues with letsdefend.io? Source: about 3 years ago
A SOC analyst role is not unrealistic if you are educated to masters level in computer science. It won't be a breeze, especially in the current climate, but you stand a fair chance if you are persistent and resilient. Make sure your... Source: about 3 years ago
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TryHackMe is an online platform for learning and teaching cyber security, all through your browser.
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An online platform to test and advance your skills in penetration testing and cyber security.
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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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VulnHub provides materials allowing anyone to gain practical hands-on experience with digital security, computer applications and network administration tasks.
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