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Exclaimer is the industry's leading provider of email signature solutions, empowering businesses to unlock the potential of email as a key digital advertising channel.

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, Exclaimer should be more popular than Cert Decoder. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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In their own words, as submitted to SaaSHub.


Exclaimer is the industry's leading provider of email signature solutions, empowering businesses to unlock the potential of email as a key digital advertising channel. With its award-winning tools, organizations can simplify the management of email signatures to deliver consistent branding,...
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
Walkthroughs and reviews on video.
Exclaimer - Office 365 - What Is Exclaimer Cloud - Signatures For Office 365?
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Exclaimer 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 Exclaimer 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.


Okay - this should be pretty obvious right now, but I still see it all the time. Do not use API keys from your client-side application!. If an API you are working with requires an API key, you should proxy your call through a gateway or... - Source: dev.to / over 1 year ago
It sounds like Avast may be using browser code injection to add their signature to your emails without your consent. This practice can be intrusive and raise privacy concerns. However, there are legitimate services like... - Source: Hacker News / over 2 years ago
Depending on what you need/want in the signatures and if that level of detail in AD...tools like exclaimer.com may or may not fit the bill. Source: over 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 Exclaimer and Cert Decoder, you can also consider the following products.

WiseStamp allows you to easily create and implement slick and unique email signatures for your business.
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A messaging app that helps you grow your business.
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Xink is a comprehensive email signature management and campaign tool designed specifically for the needs of marketers.
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MySignature is FREE Email Signature Generator that helps to create Professional Signatures for major email clients such as Outlook, Gmail...
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