
OpenSignal
Cell Signal Monitor
Tower Collector
OpenCellID
NetMonitor Cell Signal Logging
Fastah 4G Finder
Atalaya
NetMonster is a networking app by Michal Mrocek that comes up with features to enable you to get detailed information about your current network right on your mobile phone screen.

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, NetMonster should be more popular than Cert Decoder. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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In their own words, as submitted to SaaSHub.


No description of NetMonster 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 NetMonster yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
netmonster how to use, net monster app, cell tower locator, tower, opensignal, tower location app
No Cert Decoder videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing NetMonster 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 NetMonster 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.


NetMonster will collect all data from the nearby network and that they won’t even realize it. NetMonster is free and there are not any ads either.
We have no reviews of Cert Decoder yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


That sounds interesting and matches what I see on NetMonster when the my Pixel 7 switches between NR SA and LTE. For a brief moment both signals seem to be present. Source: over 3 years ago
Are there any foss alternatives for https://netmonster.app/ netmonster. Source: over 3 years ago
If you like Wigle, I'd highly suggest trying out /r/cellmapper to help crowdsource network maps in your area, and also NetMonster https://netmonster.app/ if you want more info about what you are currently connected to. Source: about 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 NetMonster 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.
Compare OpenSignal to NetMonster or Cert Decoder:
Cell Signal Monitor is an advanced network monitor that helps you to watch the state of cellular network by gathering data about cell towers. The app supports GSM, UMTS and LTE networks. There is a Free edition with adds.
Compare Cell Signal Monitor to NetMonster or Cert Decoder:

Collects GPS locations of cell towers and sends them to OpenCellID.org
Compare Tower Collector to NetMonster or Cert Decoder:

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!
Compare OpenCellID to NetMonster or Cert Decoder:

NetMonitor Cell Signal Logging app helps you in receiving accurate measurements of the speed of the internet and the strength of signals to choose the correct network according to your needs.
Compare NetMonitor Cell Signal Logging to NetMonster or Cert Decoder:

Fastah 4G Finder app contains features through which you can access a color map to get an idea about the speed of the internet on your current network.
Compare Fastah 4G Finder to NetMonster or Cert Decoder: