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

Flighty
FlightRadar24
byAir Travel App
FlightAware
App in the Air
2Flights.io
Flights25
The most affordable, simple, and easy-to-use flight tracking app. No ads, no clutter - just track your flights!

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 | onlyflights.app |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Poland · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CodePen yet.
OnlyFlights is designed with only the most useful features - no distractions, no unnecessary extras. Just simple, efficient flight tracking. What we offer: Reliable flight tracking (Track any flight in real time with accurate departure, arrival, and route details.) Flight alerts (Get instant...
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?
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodePen and OnlyFlights.
OnlyFlights's answer:
You should choose OnlyFlights over other apps because it’s fast, private, and stress-free. Unlike some flight apps, it doesn’t ask you to create an account or show you annoying ads. It gives you just what you need - like real-time flight updates, delay alerts, and a clean travel log - without any extra clutter. Plus, it’s really affordable if you want to track more than two flights. Perfect for travelers who want a simple tool that just works.
OnlyFlights's answer:
OnlyFlights is unique because it’s super simple and easy to use. You don’t need to sign up or deal with ads, and it doesn’t track your data. It focuses only on flight tracking, with clean design and useful features like live flight alerts, a countdown to your next flight, and a travel history log. It’s made for people who just want to track flights without any extra noise.
OnlyFlights's answer:
The primary audience for OnlyFlights is travelers who want a simple and reliable way to track their flights. This includes frequent flyers, casual travelers, flight crews, and even people picking someone up from the airport. These travelers care about staying updated but don’t want to deal with ads, sign-ups, or complicated apps.
OnlyFlights's answer:
The story behind OnlyFlights started with Kate and Alex, the creators of the Time2Pack app. At first, they added a flight tracking feature inside Time2Pack, just to help travelers stay more organized. But soon, users began asking for a separate app that focused only on flight tracking. So, after getting lots of feedback, they decided to build OnlyFlights as a standalone app - simple, focused, and designed just for tracking flights without distractions.
Share your experience with using CodePen and OnlyFlights. 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 OnlyFlights 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 / 2 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 / 3 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 / 12 months ago
Tracking OnlyFlights since Jun 2025.
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Flight tracking and airport navigation
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