
TruePic
Protect your art, photos, documents and videos from AI theft. Certify with permanent proof.

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, 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.
|
|
|
|
|---|---|---|
| Website | checkhc.net | certdecoder.com |
| Pricing | ||
| Platforms | ||
| Company | Startup from France · 1 - 9 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Protect your art, photos, documents and videos from AI theft. Certify with permanent proof. With 34 million AI-generated images created every day, creators, photographers, and journalists need undeniable proof that their work is 100% human. That's why I built CheckHC: the all-in-one solution to...
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.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How to certify a photo in 60 seconds
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 CHECKHC and Cert Decoder.
CHECKHC's answer
CheckHC was born from a simple observation: in a world flooded with AI-generated content and deepfakes, proving authenticity is becoming impossible.
Founded in France, CheckHC gives creators a simple, affordable way to certify their digital content before it gets stolen or manipulated. We believe every valuable digital content will soon need a "birth certificate" - and CheckHC provides exactly that.
Our mission: make digital authenticity accessible to everyone, not just corporations with enterprise budgets.
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.
CHECKHC's answer
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
CHECKHC's answer
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
CHECKHC's answer
CheckHC is the only consumer solution combining AI deepfake detection, official C2PA certification, blockchain registration, and permanent Arweave storage (200+ years) in one click.
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.
CHECKHC's answer
CheckHC just launched publicly in January 2026. We're currently onboarding our first customers:
We're offering special early-adopter pricing for professionals who want to be among the first to protect their digital assets.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
CHECKHC's answer
CheckHC is the only platform that combines in a single click:
No competitor offers all of this. OpenSea has no AI, no C2PA, no permanent storage. Truepic is B2B only at $$$. Reality Defender has no blockchain, no NFT.
CheckHC = digital birth certificate for your creations, from €0.09.
Share your experience with using CHECKHC 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.


Tracking CHECKHC since Jan 2026.
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 CHECKHC and Cert Decoder, you can also consider the following products.

The leading photo and video verification platform.
Compare TruePic to CHECKHC or Cert Decoder: