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

itch.io
Poki
Easegame
Gamex Games
Libregamewiki
Puzzlescript
The Wikipedia Game
Gamified CAPTCHAs and embeddable daily micro-puzzles to instantly boost retention, block bots, and drive engagement on your website.

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 | oops-games.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CodePen yet.
The Oops-Games Publisher Portal provides a suite of embeddable, interactive widgets designed to solve two of the biggest problems on the web: low retention rates and terrible user security experiences. Gamified CAPTCHA Solutions Stop frustrating your users with crosswalks and traffic lights. Our...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
What Is Codepen?
More videos
No Oops-Games videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodePen and Oops-Games.
Oops-Games's answer:
Our games are ad free and free to use.
Oops-Games's answer:
We don't put any burden on you or your customers. We deliver a clean product that improves retention and time on page.
Oops-Games's answer:
People who love puzzle games. Some of our games are also humerous.
Oops-Games's answer:
Two IT people stuck at an onsite, chatting over lunch. "It would be fun to make games." "Yeah, we should try that sometime."
Oops-Games's answer:
We use the antigravity IDE for the majority of our builds.
Oops-Games's answer:
You are are most important customer.
Share your experience with using CodePen and Oops-Games. 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 Oops-Games 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 / 3 months 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 / 4 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 / about 1 year ago
Tracking Oops-Games since Apr 2026.
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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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Play free online games anytime! Enjoy top casual, puzzle, and strategy games, plus many other genres—no download, no signup, just endless fun!
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