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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, SoloLearn seems to be a lot more popular than Cert Decoder. While we know about 15 links to SoloLearn, we've tracked only 1 mention of Cert Decoder.
Website, pricing, platforms and company facts side by side.
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| Website | sololearn.com | certdecoder.com |
| Pricing | — | |
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of SoloLearn 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
SoloLearn is particularly recommended for beginners looking to get started with coding, individuals seeking to learn new programming languages, and those who enjoy interactive learning modules and community-based problem-solving.
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 SoloLearn 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 SoloLearn 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.


I've been using SoloLearn for nearly 2 years, every single day, and it's almost replaced facebook for me. I mean, it's an awesome place, with awesome people. Great place to learn the basics of coding, and practice...
SoloLearn is one of the best places to learn how to code, with over 39 million learners, 1784 lessons, and 14k quizzes. I started learning how to code HTML and CSS on this website and it’s amazing.
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.


You could stick with freeCodeCamp or use SoloLearn. It's a duolingo style app that teaches programming in small exercises instead of full projects. Source: about 3 years ago
That being said, I wouldn't push it back that far. At best, push it back a month, and spend that month on sololearn.com focusing on the Java courses. If you know Java, you can learn Python on the fly. Then keep track of your intended... Source: about 3 years ago
Watch this video by Game Maker's toolkit to understand Unity, after that, learn C# using SoloLearn, it's a Duolingo style (mobile/web)app that teaches programming languages. When you finish both, start doing your own projects and when... 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 SoloLearn and Cert Decoder, you can also consider the following products.

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Best Courses. Top Institutions. Learn anytime, anywhere.
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Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.
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Treehouse is an award-winning online platform that teaches people how to code.
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Learn to code by helping nonprofits.
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