
Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

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Which is more popular?
Based on our record, Cert Decoder seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | certdecoder.com | boringusertools.com |
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| Platforms | — | |
| Company | — | Startup from Thailand · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


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.
BoringUserTools.com is a time-saving tool that offers easy automations and guides to tools. You may also check out over 250 automations made out from 150+ tools. The guides are clear and easy to learn by any level of expertise. The site assists founders, creators and small teams to construct...
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
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 Cert Decoder and BoringUser Tools.
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.
BoringUser Tools's answer:
When I first started out as a Founder, I needed simple systems instead of the stress and constantly be checking my apps. There are so many tools out there and are all so confusing. So I decided to build directory with clear guides, easy steps, and real automations that anyone can follow. It is growing daily into a library that helps people work smarter, not harder.
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.
BoringUser Tools's answer:
BoringUser Tools is unique because it makes automation simple for everyone. You get clear guides, an easy tool directory, and 250+ automations built from 150+ tools. The AI Advisor gives you steps anyone can follow so you save time, energy, money, and stress. Be a BoringUser because a BoringUser works smarter not harder.
Share your experience with using Cert Decoder and BoringUser Tools. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


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
Tracking BoringUser Tools since Nov 2025.