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

RapidAPI
APILayer
Apify
API.market
Bright Data
Apify Python SDK
CollectAPI
Turn the internet into your API. Scrape, search and stream real-world data through one gateway — scoped keys, transparent pricing, a single wallet.

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 | jojapi.com |
| Pricing | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2022 |
| Listed in |
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.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodePen and JoJ API.
JoJ API's answer:
JoJ API's answer:
Redis and Nginx, with a custom high-performance API gateway layer. ClickHouse powers usage analytics.
JoJ API's answer:
JoJAPI combines an API marketplace with a full monetization stack. Providers publish APIs through our gateway and get multi-dimensional metering, flexible pricing (pay-as-you-go, subscriptions, per-object billing), and monthly payouts without integrating any payment infrastructure themselves. Consumers access every API on the platform with a single API key and a shared credit wallet — no separate subscriptions per provider. The platform processes over 300 million API requests per month.
JoJ API's answer:
Unlike larger API marketplaces, JoJAPI offers a shared wallet model: you top up once and consume any API on the platform, instead of managing separate subscriptions for each API. Pricing is transparent and usage-based, with free tiers on many APIs and no credit card required to start. For providers, JoJAPI takes care of billing, metering, quota enforcement, and payouts, so publishing a monetized API takes minutes rather than weeks of payment integration work.
JoJ API's answer:
Software developers, indie hackers, and product teams who need ready-to-use APIs without building their own data infrastructure — plus API providers who want to monetize their APIs through a managed marketplace.
JoJ API's answer:
JoJAPI was built by a solo founder who spent years building and selling APIs on existing marketplaces and kept hitting the same walls: rigid pricing models, opaque billing, and slow payouts. JoJAPI started as a better home for those APIs and grew into a full marketplace, now serving hundreds of millions of requests per month.
Share your experience with using CodePen and JoJ API. 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 JoJ API 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
Tracking JoJ API since Jul 2026.
When comparing CodePen and JoJ API, you can also consider the following products.

Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
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API marketplace for finding and connecting to the world's top APIs.
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API marketplace and ready to run app backends for your mobile app and website.
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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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Apify is a web scraping and automation platform that can turn any website into an API.
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