
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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Promptyx is an AI Prompt Management & Engineering Platform, also a "GitHub for Prompts". Stop losing your best prompts while knowing how each performs, both in quality and cost. Compare and Track edits, runs and models. Accelerate your AI workflows

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 | promptyx.tech |
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| Company | — | Startup from India · 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.
Promptyx is a “AI Prompt Manager”, “AI Prompt Engineering Tool’, or “GitHub for Prompts”, which helps individuals & teams organize, version, optimize and analyze their prompts easily in a unified dashboard while creating optimized workflows with them. Stop searching for that “one prompt” in...
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
No analysis of Promptyx.tech yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Cert Decoder and Promptyx.tech.
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
Promptyx.tech's answer:
Third-party AI APIs for OpenAI, Claude and Gemini. Vanilla JS (and NodeJS) along with Postgres. All Self-hosted on VPS
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Promptyx.tech's answer:
Consumer-based Prompt Engineers or Founder. But can be anyone from hobbyists, content creators, data analysts, etc.
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.
Promptyx.tech's answer:
No need to pay $200 or $500, like for Agenta & BrainTrust. No need to configure any pre-setup or handle any integration yourself. Get easy-to-understand for all, product, in a affordable way. $20/month for very high limits for 6 months, lesser than even PromptLayer. Doesn't provide only Evaluation and Observability, like most. Instead consumer-based prompt management and engineering
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Promptyx.tech's answer:
Prompt Management & Engineering in an affordable and easy way, for all. Get very high limits in only $20 a month, while others take $200 while giving less. Developers, Founders, Hobbyists, Data Analysts, Content Creators, Marketers all can use it easily without needing to configure 5 .yaml files
Share your experience with using Cert Decoder and Promptyx.tech. 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 Promptyx.tech since Aug 2026.