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Descript
AI note-taking app that records, transcribes, and summarizes lectures

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


NoteGPT is an AI-powered note-taking app that turns any lecture, meeting, or voice memo into clear, structured notes in seconds. It records and transcribes audio, then automatically creates concise summaries, flashcards, and study guides so you can revise faster and remember more. Built for...
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.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing NoteGPT 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.
NoteGPT's answer
React, Next.js, Node.js, TypeScript, PostgreSQL, Stripe, OpenAI API, AWS, Firebase, Google Analytics.
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
NoteGPT's answer
Students, self-learners, and educators who record lectures or classes; knowledge workers and professionals who need accurate meeting transcripts and summaries; content creators who want to turn audio and video into structured notes.
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 NoteGPT 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 NoteGPT since Dec 2025.
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 NoteGPT and Cert Decoder, you can also consider the following products.

Your AI meeting assistant that takes live notes and generates summaries and other insights using Meeting GenAI.
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Generate summaries of YouTube videos quickly and easily with Eightify AI ChatGPT. Our Chrome extension lets you access a summary of YouTube videos and quickly find main points. Try it now and get the most out of your YouTube videos.
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Automatically turn audio into editable, searchable and sharable text. Notta helps unleash the power of voice and brings your productivity to the next level.
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Convert audio and video to accurate text in seconds with AI
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AI-first notebook by Google, available in the U.S., blends large language models and user-chosen data. Apply for access to explore intelligent insights and enhance your note-taking experience.
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