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Proxidize
OpenCelliD is the largest Open Database of Cell Towers & their locations. You can geolocate IoT & Mobile devices without GPS, explore Mobile Operator coverage and more!

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, OpenCellID should be more popular than Cert Decoder. It has been mentioned 8 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | opencellid.org | certdecoder.com |
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In their own words, as submitted to SaaSHub.


No description of OpenCellID 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 OpenCellID 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 OpenCellID 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 OpenCellID 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.


iPhone Field Test Mode can be informative, https://www.xda-developers.com/how-access-field-test-mode-ios/ when combined with open data on cell towers, https://opencellid.org/. - Source: Hacker News / over 1 year agoDial *3001#12345#*
However, the cellmapper.net shows no T-Mobile towers (PLMN 310 260) at that location? Of course this could be because of missing datapoints in cellmapper, but looking and searching at the other towers, I cant match anything between... Source: over 3 years ago
Could start with using your data and compiling it with data from https://opencellid.org/. Source: over 4 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 OpenCellID and Cert Decoder, you can also consider the following products.

Mobile analytics and insights on wireless connectivity from Opensignal, the independent global standard for understanding the true state of the world's mobile network.
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Collects GPS locations of cell towers and sends them to OpenCellID.org
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Profone Tracker is one of the first to provide cell phone location tracking using CellID and LAC.
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Mozilla Stumbler is an open-source wireless network scanner that collects GPS data for the Mozilla...
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WiGLE (Wireless Geographic Logging Engine)
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Monitor and get information from nearby cell phone towers. - aeri/Atalaya
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