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Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.

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, StackEdit seems to be a lot more popular than Cert Decoder. While we know about 52 links to StackEdit, we've tracked only 1 mention of Cert Decoder.
Website, pricing, platforms and company facts side by side.
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| Website | stackedit.io | certdecoder.com |
| Pricing | ||
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of StackEdit 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
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
StackEdit is highly recommended for writers, bloggers, developers, and students who frequently work with markdown files and need a powerful editor that can integrate with cloud storage services while providing collaboration features.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
StackEdit - Write Markdown on Google Drive
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing StackEdit 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 StackEdit 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.


- Not sure if I want auto-save (see above) This is another local-first editor I would prefer using (no install required): https://stackedit.io --- I also prefer installing via brew. Otherwise macOS doesn't allow you to run the app... - Source: Hacker News / 6 months ago
Https://daringfireball.net/projects/markdown/syntax#philosophy "Markdown-formatted document should be publishable as-is, as plain text, without looking like it’s been marked up with tags or formatting instructions." Any text editor... - Source: Hacker News / over 1 year ago
StackEdit: An open-source, free Markdown editor based on PageDown. - Source: dev.to / almost 2 years 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
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