FlightAware
ADSBExchange
RadarBox
OpenSky Network
ADSB Hub
VariFlight
FlyView
Plane Finder is built on Automatic Dependent Surveillance – Broadcast (ADS-B) enabling the transmission of real-time data directly from, and to, aircraft.

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, Plane Finder seems to be a lot more popular than Cert Decoder. While we know about 45 links to Plane Finder, we've tracked only 1 mention of Cert Decoder.
Website, pricing, platforms and company facts side by side.
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PF
Plane Finder
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|---|---|---|
| Website | planefinder.net | certdecoder.com |
| Pricing | — | |
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Plane Finder 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.

Overall verdict
Why this product is good
Recommended for
Aviation enthusiasts, frequent travelers, aviation professionals, and anyone interested in tracking flights in real-time will find Plane Finder useful. It's also beneficial for people who want to receive timely updates about specific flights or enjoy discovering and learning about different aircraft.
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 Plane Finder 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 Plane Finder and Cert Decoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

I just checked https://planefinder.net/ and I didn't see anything flying near El Cajon from 9:05 to 9:20. Source: almost 3 years ago
Look them up on https://planefinder.net. Source: about 3 years ago
I just checked planefinder.net it said that the plane flew in the direction of Smolensk then carried on south west, is currently heading to Caspian Sea. Source: about 3 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 Plane Finder and Cert Decoder, you can also consider the following products.


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.
Compare ADSBExchange to Plane Finder or Cert Decoder:

Real-time flight tracking app with one of the best and most accurate coverage worldwide.
Compare RadarBox to Plane Finder or Cert Decoder:

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.
Compare OpenSky Network to Plane Finder or Cert Decoder:
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.
Compare ADSB Hub to Plane Finder or Cert Decoder:

VariFlight is a live flight tracking service that allows you to have real-time information about flights worldwide.
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