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A User Research Platform that helps you and your team make design decisions with confidence.

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?
Cert Decoder might be a bit more popular than Optimal Workshop. We know about 1 link to it since March 2021 and only 1 link to Optimal Workshop.
Website, pricing, platforms and company facts side by side.
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| Website | optimalworkshop.com | certdecoder.com |
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| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Optimal Workshop 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 Optimal Workshop yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Optimal Workshop Card Sorting How-To
More videos
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 Optimal Workshop 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 Optimal Workshop 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.


💡 Already using Optimal Workshop but finding it doesn’t meet all your needs? Consider these eight Optimal Workshop alternatives for your UX research.
Optimal Workshop decided to take a different approach here. They also offer you two different options on how to recruit your respondents, but they are not completely the same as with UXtweak. Firstly, and similarly to...
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.


Optimal Workshop Optimalworkshop.com Free tools for card sorting and tree testing. - Source: dev.to / over 1 year 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
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