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

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AI-powered compliance document generator for A2P 10DLC SMS campaign registration. Generates Privacy Policies, Terms & Conditions, and Submission Language that meet AT&T, T-Mobile, and Verizon carrier requirements through The Campaign Registry.

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 | geta2papproved.com |
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| Platforms | — | |
| Company | — | Startup from the United States · 2026 |
| 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.
GetA2PApproved is an AI-powered platform that generates the compliance documents required for A2P 10DLC SMS campaign registration. Any business that sends text messages to customers in the United States must register their SMS campaigns through The Campaign Registry and get approved by carriers...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
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Overall verdict
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Cert Decoder and GetA2PApproved.
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.
GetA2PApproved's answer:
It started from seeing businesses repeatedly get their SMS campaigns rejected over compliance paperwork. The documents required for A2P 10DLC registration are highly specific and must be perfectly consistent with each other. Businesses were paying lawyers, copying templates, or guessing — and still getting rejected. The idea was to build an AI tool that knows exactly what carriers want and generates it right the first time.
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
GetA2PApproved's answer:
Next.js, React, TypeScript, Tailwind CSS, Supabase for the database and authentication, Claude AI for document generation and compliance analysis, Stripe for payments, and Vercel for hosting and deployment.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
GetA2PApproved's answer:
Small to mid-size businesses that send SMS messages to customers and need to register their campaigns through The Campaign Registry. Marketing agencies managing A2P 10DLC registrations for multiple clients. GoHighLevel and CRM users setting up SMS campaigns. Anyone who has been rejected or is trying to avoid rejection during 10DLC registration.
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.
GetA2PApproved's answer:
There is no direct competitor that generates all three A2P 10DLC documents together with cross-document consistency enforcement. Alternatives are either lawyers charging hundreds of dollars with no guarantee of approval, generic templates that don't match each other, or DIY approaches that miss carrier-specific requirements. GetA2PApproved also includes a compliance feedback loop — the AI learns from its own analysis results so documents improve with every regeneration cycle.
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
GetA2PApproved's answer:
It generates all three required A2P 10DLC compliance documents from a single questionnaire and mechanically cross-references them for consistency. Most solutions offer templates or single documents — GetA2PApproved ensures consent language, opt-out disclosures, and message frequencies match perfectly across your Privacy Policy, Terms & Conditions, and Submission Language. It also includes AI compliance analysis that catches issues before carriers do.
Share your experience with using Cert Decoder and GetA2PApproved. 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 GetA2PApproved since Feb 2026.