
1stcalc.com
Omni Calculator
calculator.net
Getcalc
TechCalc.org
CalCon Calculator
InfinityCalculator.net
Need quick answers? Use simple calculators for money, health, conversions, education, and daily tasks. Enter your numbers and get clear results in seconds.

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 | 100calc.com | certdecoder.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Pakistan · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


100calc.com is a multi-niche online calculator platform designed for speed, accuracy, and simplicity. It offers practical tools for gold pricing, finance, health tracking, education, time calculations, and everyday planning. Built with a lightweight structure and user-focused design, the platform...
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 100calc.com and Cert Decoder.
100calc.com's answer
100calc.com was created to solve a simple problem: most online calculators are scattered, outdated, or overloaded with ads. The platform was built as a centralized, fast-loading calculator hub that helps users verify numbers instead of guessing — whether for gold value, pregnancy dates, attendance percentages, or financial planning.
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.
100calc.com's answer
100calc.com is built using modern web technologies including WordPress architecture, optimized JavaScript calculation engines, lightweight CSS frameworks, and performance-focused hosting. The platform prioritizes fast loading speed, clean code structure, and scalable tool development.
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
100calc.com's answer
The primary audience includes students, investors, small business owners, fitness-conscious users, parents, and anyone who needs quick, reliable calculations. It’s designed for everyday users who prefer clear answers without complex dashboards or technical barriers.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
100calc.com's answer
People choose 100calc.com because it combines multiple calculator categories in one organized platform without forcing sign-ups or cluttering the experience with unnecessary features. The tools are built for fast results, accurate formulas, and simple layouts that make decision-making easier.
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.
100calc.com's answer
100calc.com serves a broad user base rather than corporate clients. Its biggest users include students, investors tracking gold prices, parents calculating due dates, and professionals who rely on quick financial or productivity calculations.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
100calc.com's answer
100calc.com stands out as a multi-niche calculator hub that focuses on speed, clarity, and real-world usability. Instead of offering generic math tools only, it provides practical calculators for finance, gold pricing, health tracking, education, time planning, and everyday decisions — all in a clean, distraction-free interface.
Share your experience with using 100calc.com 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 100calc.com since Feb 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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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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getcalc.com - online calculators, formulas & work with steps (step by step calculation) for expressions, statistics, probability, finance, health, geometry, general purpose & engineering calculations along with basic & scientific calculators.
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Free online calculators for download time, PPI pixel density, and aspect ratio.
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Far too often we find ourselves spending a lot of time on certain calculations.
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