
Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

Pikaso
Pikaso Bot
Tweet Hunter for Twitter
Turn any social post into a beautiful image.

Which is more popular?
Based on our record, Cert Decoder seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | certdecoder.com | postcapture.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from Switzerland · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


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.
No description of PostCapture yet.
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
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 Cert Decoder and PostCapture.
PostCapture's answer:
PostCapture provides a streamlined way to generate high-quality screenshots of social media posts with customization options and support for multiple platforms like X (Twitter) and Bluesky. It focuses on speed, ease of use, and professional-looking outputs.
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.
PostCapture's answer:
Simple and fast UI with no unnecessary complexity. Supports multiple platforms beyond just X (Twitter). Freemium model with a generous free tier. Paid plans are affordable compared to competitors.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
PostCapture's answer:
Content creators who want to share high-quality post screenshots. Social media managers looking for quick and branded post captures. Journalists and researchers needing to archive posts in an organized way. Anyone who wants to preserve or share impactful posts in a visually appealing format.
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.
PostCapture's answer:
PostCapture started as a tool to make sharing social media posts easier, eliminating the need for manual cropping and editing. As demand grew, additional features like Bluesky support and advanced customization options were introduced.
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
PostCapture's answer:
Next.js for the frontend and backend. TailwindCSS for styling. Python backend. Kubernetes deployment.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
PostCapture's answer:
While PostCapture is still growing, it is being used by content creators, journalists, and social media professionals. Specific customer names are not publicly disclosed.
Share your experience with using Cert Decoder and PostCapture. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


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
Tracking PostCapture since Mar 2025.