
Omni Calculator
calculator.net
CodeKitHub
Practical Tools
A.Tools
Tools & Calculators
TextKit.dev
Free online calculator tools — pro rata, salary, insurance and more

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 | toolcr.com | certdecoder.com |
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| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of ToolcR 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
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing ToolcR and Cert Decoder.
ToolcR's answer
ToolCR was built to provide free, easy-to-use calculator tools for everyday financial and insurance calculations — accessible to anyone without barriers.
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.
ToolcR's answer
WordPress, JavaScript, HTML, CSS.
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
ToolcR's answer
HR professionals, employees, landlords, insurance agents, and freelancers in the US and UK who need quick and accurate pro rata calculations.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
ToolcR's answer
ToolCR is 100% free, no registration needed, mobile friendly, and covers a wide range of pro rata and insurance calculations that other tools don't offer together.
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.
ToolcR's answer
HR professionals Insurance agents Landlords Freelancers Employees
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
ToolcR's answer
ToolCR offers completely free calculator tools with no sign-up required. It specializes in pro rata calculations for salary, insurance, rent and holiday entitlement — all in one place.
Share your experience with using ToolcR 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 ToolcR since Apr 2026.
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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