
Day One
ULY
Journalistic
Stoic.
Journal App
Daylio
Life Note
Secure, simple & beautiful diary app.

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, Diarly should be more popular than Cert Decoder. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | diarly.app | certdecoder.com |
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| Company | 2018 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Diarly lets you securely keep a diary. It has a distraction-free interface and is packed with advanced features to make writing delightful.
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.


No analysis of Diarly yet.
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 Diarly 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 Diarly 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.


I was helping a friend look at journaling apps a few months ago, and one reason I refrained from suggesting Day One was because it had been acquired by Automattic. I ended up suggesting Diarly [1], but I think said friend went with... - Source: Hacker News / almost 2 years ago
Another thing to consider is Day One has gone to a $35/year subscription model for many of the features. You may find the free version sufficient, but if not and the price is too high for you, take a look at Diarly. Their price is about... Source: over 3 years ago
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 Diarly and Cert Decoder, you can also consider the following products.

A simple journal application for the Mac, iPhone, and iPad. AboutTo learn more about Day One, see these two excellent reviews . PublishPublish is not available in Day One 2.
Compare Day One to Diarly or Cert Decoder:


A simple, yet powerful micro journaling app
Compare Journalistic to Diarly or Cert Decoder:

Unlock a happier, more productive life with stoic. Journal, set habits, track mood, tackle obstacles, and gain insights for full well-being. Join 3M+ today.
Compare Stoic. to Diarly or Cert Decoder:


Daylio enables you to keep a private diary without having to type a single line.
Compare Daylio to Diarly or Cert Decoder: