
FlightAware
RadarBox
ADSBExchange
ADSB Hub
Plane Finder
VariFlight
FlightRadar24
The OpenSky Network is a non-profit ADS-B exchange for sharing real time aircraft data broadcast over the airwaves. The network consists of thousands of sensors connected to the Internet by volunteers which collect ADS-B and Mode S broadcast data.

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

Which is more popular?
Based on our record, OpenSky Network should be more popular than Cert Decoder. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | opensky-network.org | certdecoder.com |
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In their own words, as submitted to SaaSHub.


No description of OpenSky Network yet.
Cert Decoder is a free online tool that helps you decode X.509 SSL/TLS certificates in PEM format. It instantly shows important information like the issuer, expiry date, SAN entries, and fingerprint. All data is processed locally in your browser, so nothing is ever sent or stored elsewhere.
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.


No analysis of OpenSky Network yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing OpenSky Network and Cert Decoder.
Cert Decoder's answer:
I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.
Cert Decoder's answer:
certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Cert Decoder's answer:
Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Share your experience with using OpenSky Network and Cert Decoder. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


OpenSky Network helps urban planning by showing flight paths and their impacts. It improves aviation safety by analyzing near-miss incidents. Insurance companies can verify flight claims with real-time data. It also...
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Recommendations tracked on public social media and blogs since March 2021.


What about opensky-network.org? Their API is free if you are a feeder. I use Node-RED to get the exact information you mention. Not sure what programming language you are going to use, but if I can get it working in Node-RED as a... Source: about 5 years ago
You may try https://opensky-network.org/, they have a good historical data for aircrafts. Might be something you can find for the airports as well. Source: about 5 years ago
I haven't thought much about this actually. I wouldn't know how to do something interesting with monitoring/streaming/retraining because as you say, it looks like you would need a proper production setting; that said, there are some... Source: about 5 years ago
Why? Because I built certdecoder.com and couldn’t find a decent place to submit it. So I said screw it — I’ll build my own. With blackjack and hookers. - Source: dev.to / over 1 year ago
When comparing OpenSky Network and Cert Decoder, you can also consider the following products.


Real-time flight tracking app with one of the best and most accurate coverage worldwide.
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The world’s largest co-op of ADS-B/Mode S/MLAT feeders, and the world’s largest public source of unfiltered flight data. Access to worldwide flight tracking data for hobbyists, researchers, and journalists alike.
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The main goal of ADSBHub is to become a ADS-B data sharing centre and valuable data source for all enthusiasts and professionals interested in development of ADS-B related software.
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Plane Finder is built on Automatic Dependent Surveillance – Broadcast (ADS-B) enabling the transmission of real-time data directly from, and to, aircraft.
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VariFlight is a live flight tracking service that allows you to have real-time information about flights worldwide.
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