
Auth0
Keycloak
Next.js
Okta
AuthKit
Amazon Cognito
Kinde
Clerk is a complete suite of embeddable UIs, flexible APIs, and admin dashboards to authenticate and manage your users.

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, Clerk Authentication seems to be a lot more popular than Cert Decoder. While we know about 47 links to Clerk Authentication, we've tracked only 1 mention of Cert Decoder.
Website, pricing, platforms and company facts side by side.
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| Website | clerk.com | certdecoder.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States · 50 - 99 employees · 2019 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Clerk Authentication 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.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Clerk Authentication 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 Clerk Authentication 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 Clerk Authentication 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 work at malibou, an HRIS that also runs payroll for its customers, built on Next.js with Clerk for authentication. Every row we serve belongs to exactly one company, and companies must never see each other. That sentence isn't hard to... - Source: dev.to / 23 days ago
For hosted auth, the market has a few solid options. Auth0 is the incumbent — mature, well-documented, but the pricing can surprise you as you scale. Clerk is developer-friendly with great React components, though you're fairly locked... - Source: dev.to / 4 months ago
We mostly go with solutions that don't let us worry or deeply invest in authentication like third party services such as Clerk, a BaaS like Supabase or even Better Auth, so we have auth ready in seconds and we can ship fast. - Source: dev.to / 5 months 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 Clerk Authentication and Cert Decoder, you can also consider the following products.

Auth0 is a program for people to get authentication and authorization services for their own business use.
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Open Source Identity and Access Management for modern Applications and Services.
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A small framework for server-rendered universal JavaScript apps
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Enterprise-grade identity management for all your apps, users & devices
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The world's best login box, powered by WorkOS + Radix.
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Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.
Compare Amazon Cognito to Clerk Authentication or Cert Decoder: