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Discover the latest AI tools, apps, and tech products for founders, makers, and startups. Curated for quality to help you build, launch, and grow faster.

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 | startfa.st | certdecoder.com |
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| Platforms | — | |
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In their own words, as submitted to SaaSHub.


No description of StartFast 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.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
StartFast Review- Experiences With This SAAS STARTER KIT Platform? See?(Do not Use Yet)
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing StartFast and Cert Decoder.
StartFast's answer
StartFast began as a personal list. The AI and dev tool ecosystem was moving too fast, every day new tools launched, disappeared, or got buried under hype. Keeping track became impossible.
So StartFast was built to solve that problem:
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
StartFast's answer
StartFast is built for people who build things:
Anyone who needs to discover high-quality tools fast is the core audience.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
StartFast's answer
Because most tool directories recycle the same 20–30 products or list everything without curation. StartFast focuses on discoverability and speed.
People choose StartFast because:
You don’t waste time digging through noise, you find the right tools quickly.
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.
StartFast's answer
StartFast is still early, but already getting traction receiving many visits, and it's already being used by:
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
StartFast's answer
StartFast is fully curated by hand, not auto-generated. Instead of flooding users with thousands of low-quality or repetitive tools, it delivers a signal-only directory of the best AI, dev, and startup products. It’s fast, simple, and designed for builders who want quality over quantity. No noise, no spam, no bloat, just tools worth knowing.
Share your experience with using StartFast and Cert Decoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking StartFast since Nov 2025.
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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