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Free online tools including image editors, text utilities, unit converters, calculators, color tools, file converters, and many other handy features.

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 | niftyutils.com | certdecoder.com |
| Pricing | ||
| Platforms | ||
| Company | Startup from Poland · 1 - 9 employees | — |
| Listed in |
In their own words, as submitted to SaaSHub.


NiftyUtils is a free, browser-based toolkit that simplifies everyday digital tasks without installation or sign-up. It offers tools for image editing, text processing, color adjustments, unit conversions, and calculators. Key Features Images: Resize, crop, convert formats, adjust...
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
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 NiftyUtils and Cert Decoder.
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
NiftyUtils's answer
NiftyUtils is designed for anyone who needs quick, reliable online tools. This includes students, professionals, designers, developers, content creators.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
NiftyUtils's answer
NiftyUtils delivers easy-to-use, secure online tools that process entirely in your browser. Fully optimized for mobile, it offers image editors, text utilities, unit converters, calculators, color tools, and more - all instantly accessible with no signup.
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.
Share your experience with using NiftyUtils 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 NiftyUtils since Oct 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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