
Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

PetDesk
Tractive
DoggoCatto Diary
Pawtrack App
PetFoodWizard
The holistic health tracker for independent cat owners. Manage daily nutrition, natural remedies, and routines in your custom PurrFolio.
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 | mypurrtrack.com |
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| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| 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.
PurrTrack is a mobile health tracking app designed for cat owners managing individual felines or multi-cat households. The platform provides structured tracking, centralized health logging, and quick-export capabilities to give owners complete visibility over their cats' daily health records....
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 PurrTrack yet.
Walkthroughs and reviews on video.
No Cert Decoder videos yet. You could help us improve this page by suggesting one.
PurrTrack app test demo - helping cat owners with automated calorie and weight tracking
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Cert Decoder and PurrTrack.
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.
PurrTrack's answer:
PurrTrack was created out of a real-world need to streamline daily care, custom nutrition, and health tracking for cats without relying on scattered notebooks or generic pet apps. Recognizing that feline wellness requires tracking subtle weight shifts, specific meal routines, and detailed observations, PurrTrack was built to give caregivers a centralized digital binder (the PurrFolio) and instant, exportable health records whenever they need them most.
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
PurrTrack's answer:
Cross-Platform Mobile Development Frameworks, Firebase, and RevenueCat.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
PurrTrack's answer:
The primary audience includes individual cat owners, multi-cat household managers, foster guardians, and holistic feline caregivers who want structured, day-to-day visibility over their cats' daily feeding schedules, weight trends, and overall wellness protocols.
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.
PurrTrack's answer:
Unlike generic pet apps that primarily serve as booking tools for veterinary clinics, PurrTrack is built specifically for cats and puts complete control in the owner's hands. It offers a structured 4-tab tracking framework (Vitals, Meals, Weight, and the PurrFolio for detailed notes and reference URLs) and direct access to the Remedy Vault. Plus, with emergency-ready PDF and CSV data exports, you always maintain full ownership of your cat’s health records.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
PurrTrack's answer:
PurrTrack's answer:
PurrTrack is built specifically for feline care rather than generic pet tracking. It features a structured 4-tab profile system (Vitals, Meals, Weight, and PurrFolio) alongside emergency-ready PDF and CSV data exports. Unlike traditional pet apps designed around clinic appointment bookings, PurrTrack empowers owners to independently manage daily care, track custom nutritional routines, store reference URLs, and access an integrated Remedy Vault—scaling seamlessly for single or multi-cat households.
Share your experience with using Cert Decoder and PurrTrack. 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 PurrTrack since Jul 2026.