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Inoreader
Feeder RSS feed reader
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FreshRSS
RSS Guard
Feedbro
Modern, open-source desktop RSS reader

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, Fluent Reader should be more popular than Cert Decoder. It has been mentioned 7 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | hyliu.me | certdecoder.com |
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| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Fluent Reader 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
Anyone who enjoys consuming news from varied sources through an RSS feed, individuals who appreciate well-designed software with customization options, and users looking for a free, open-source alternative to paid RSS readers. It's especially useful for those who work across multiple devices and require consistent, synchronized access to their feeds.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Fluent Reader is the BEST Linux RSS Feed Reader
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Fluent Reader 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 Fluent Reader 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.


I really like Fluent Reader. It’s relatively basic but imo looks good, nice to use and also open source. Source: over 3 years ago
Best option I know of that supports those 3 platforms (and is open source which is nice) is Fluent Reader: https://hyliu.me/fluent-reader/. - Source: Hacker News / almost 4 years ago
Https://hyliu.me/fluent-reader/ - is a local, cross-platform news aggregator with a fresh look. Source: about 4 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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RSS Guard is simple (yet powerful) feed reader. This is the official project repository. - martinrotter/rssguard
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