
MailChimp
MailerLite
Brevo
GetResponse
SendPulse
Twilio
Campaign Monitor
Easy to use, powerful and affordable email marketing application.

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, SENDER should be more popular than Cert Decoder. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | sender.net | certdecoder.com |
| Pricing | ||
| Platforms | ||
| Company | Startup from Lithuania | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Sender is a simple yet powerful email and SMS automation platform with smart segmentation and personalization features that let you categorize your subscribers to reach them more efficiently.
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 SENDER 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 SENDER and Cert Decoder. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


I jumped ship from Mailchimp to Sender back in 2022, and it's been one of my better business decisions. My monthly email costs immediately dropped from $20 to zero, while I got more features to work with. The...
Sender is an all-in-one marketing automation solution to capture, segment, and nurture leads on autopilot. Its intelligent automation capabilities follow up using personalized drip sequences to move them through your...
Lucy — “I sincerely believe that Sender are one of the best in its services. They have useful tools to manage e-mails which is easy to understand. I have to send lots of e-mails and newsletters in our community weekly...
We have no reviews of Cert Decoder yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


I use sender.net for my newsletter and write a sports blog in wordpress. In article, I'd like to put the small form to sign up for the newsletter (see link) into the articles. I know how to float it so it wraps text around it in a... Source: over 3 years ago
For example, you can get web hosting for a wordpress site for as little as $2 per month (that's what I'm paying here in Sweden with Inleed, and we're an expensive country). You'll also need a domain name, which will cost you some $15 per... Source: over 4 years ago
I found sender.net even cheaper - having more features for the same price! Source: almost 5 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 SENDER and Cert Decoder, you can also consider the following products.

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