
FlipClock
Pomofocus
CityTime
FlipClock.info
Online timer
Online-Clock.org
Pomodoro
Turn your device into an aesthetic flip clock, complete with seconds and full screen mode. A simple, stylish, and always accurate web clock.

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


No description of A Flip Clock 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.


No features have been listed yet.
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 A Flip Clock 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
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
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 A Flip Clock 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 A Flip Clock since Apr 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
When comparing A Flip Clock and Cert Decoder, you can also consider the following products.

Minimal aesthetic clock available for all devices
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A simple and customizable pomodoro timer for the web
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Full Screen online clock and world clock - three Modes - Flip Clock, Digital Clock with Seconds, Analogue Clock that auto-detects your timezone and shows the current local time and world time. UTC offset, DST status, and day/night indicator included.
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Beautiful flip clock online with smooth flip animations. Fullscreen, themes, 12/24-hour, time zones, and optional lo-fi ambience. Minimal and distraction-free.
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Online timer is a free and easy-to-use tool that comes with a very simple way to get done with measuring time and alarm.
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Online-Clock.org is an online digital clock to get your current local time and has options to set the alarm, stopwatch, and countdown.
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