
AnonAddy
Firefox Relay
33Mail
have i been pwned?
Guerrilla Mail
10 Minute Mail
MailDrop
Receive and send emails anonymously. Create a unique email address for each website to avoid cross-site tracking and protect your inbox from spam, phishing and data breaches.

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, SimpleLogin seems to be a lot more popular than Cert Decoder. While we know about 273 links to SimpleLogin, we've tracked only 1 mention of Cert Decoder.
Website, pricing, platforms and company facts side by side.
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| Website | simplelogin.io | certdecoder.com |
| Pricing | ||
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| Company | Startup from France · 2019 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


SimpleLogin is an open-source email alias solution that allows you to protect your email via "email alias": just use alias instead of email address everywhere. Emails sent to an alias are forwarded to your mailbox. If you want to reply, just hit "reply" and the reply will come from your alias,...
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.
SimpleLogin Review - How Have I Survived Without It!?
No Cert Decoder videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SimpleLogin 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 SimpleLogin 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.


Works great. I've been a premium subscriber for a while and everything works well. New features are released frequently.
SimpleLogin is the best email alias service. Having used it for several months now, for both my personal and pro emails and everything just works. The team is very reactive and new features are constantly released....
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.


Simple Login (SL), Addy (AD), and DuckDuckGo Email Protection (DDG) are the 3 alias email services I use. Both SL and AD can send and receive. DDG only receives. You can disable the sending direction and simply allow the forward service... - Source: Hacker News / about 2 years ago
There’s https://simplelogin.io/, which is owned by Proton now, so similar in terms of privacy. You can get it separately, or as part of Proton Pass or Mail. - Source: Hacker News / over 2 years ago
I belive the best chioce for todays is https://simplelogin.io/, that is why:. - Source: dev.to / over 2 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
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