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

Factful.io
Factiverse AI-Editor
GetGenAI
Obviously AI Data Validator
Validator AI
AI output verification and ethics auditing

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 | aretify.com |
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| Platforms | — | |
| Company | — | Startup from the United States · 1 - 9 employees |
| 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.
Chrome extension that fact-checks AI outputs from ChatGPT, Claude, and Gemini. Extracts claims, searches 15+ evidence sources (Semantic Scholar, PubMed, Wikipedia, Crossref), gives a 0-100 accuracy score with citations, and evaluates ethics across 8 philosophical frameworks. Free tier: 10...
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 Aretify.
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.
Aretify's answer:
Built by a CS/Math student at UCSD who kept catching ChatGPT fabricating claims. The ethics engine was developed with his father, a philosophy professor, whose 35-page framework covering 8 philosophical traditions powers the analysis.
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
Aretify's answer:
Next.js, FastAPI, Chrome Extension (Manifest V3), Supabase, and integrations with 15+ evidence APIs including Semantic Scholar, PubMed, OpenAlex, Crossref, Wikipedia, and Google Fact Check.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Aretify's answer:
Anyone who uses AI for important decisions - students verifying research, professionals fact-checking reports, journalists confirming sources, and anyone who wants to know if what AI told them is actually true.
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.
Aretify's answer:
Aretify is the only tool that does both accuracy verification and ethics analysis in one platform. It works as a Chrome extension across ChatGPT, Claude, and Gemini - no copy-pasting needed. Free tier gives 10 verifications per day with no credit card required.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Aretify's answer:
Aretify combines fact-checking with ethics auditing. Most tools only check if content is AI-generated - Aretify verifies whether AI claims are actually true by searching 15+ evidence sources, and evaluates ethical implications across 8 philosophical frameworks built by a philosophy professor.
Share your experience with using Cert Decoder and Aretify. 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 Aretify since Mar 2026.