
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, 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 | keenl.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from Australia · 1 - 9 employees · 2026 |
| 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.
No description of KEENL yet.
What each product offers, as listed by its team.


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 KEENL.
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.
KEENL's answer:
The story of KEENL is rooted in the dramatic shift of the digital landscape in 2025. As AI chatbots and search summaries began reducing organic traffic to traditional websites, the team realized that the era of expensive, complex, and "fancy" websites was ending. Businesses no longer needed heavy animation or complex navigation; they needed a trusted "source of truth" for AI systems to reference. KEENL was created to provide exactly that: digital legitimacy and verification without the bloat, helping businesses adapt to a web where simplicity is the ultimate sophistication.
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
KEENL's answer:
KEENL leverages advanced Generative AI and No-Code architecture to function.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
KEENL's answer:
KEENL is built for "the builders, the doers, and the local heroes." It is specifically not for large enterprises looking for expensive custom designs. The primary audience includes:
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.
KEENL's answer:
A person should choose KEENL to save time and money while avoiding technical debt.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
KEENL's answer:
As KEENL is currently in its "Early Bird" phase, targeting the "first wave of builders," it focuses on empowering individual entrepreneurs and emerging businesses rather than Fortune 500 companies. The user base consists of:
KEENL's answer:
KEENL stands out because of its "Site Credit" financial model and its philosophy on the modern web. Unlike almost every other website builder that relies on perpetual monthly subscriptions, KEENL treats a website as an asset you own. With the "Lifetime Credit Plan," users pay once and host forever. Additionally, KEENL is built specifically for the AI era; it rejects "fancy," bloated designs in favor of clean, authoritative sites that serve as a verified "source of truth" for AI search engines and chatbots.
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External articles and on-site reviews we used to compare the two products.


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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 KEENL since Jan 2026.