
Kingshiper Auto DLL Fixer
Advanced SystemCare
BleachBit
Bitwar DLL Fixer
Auslogics BoostSpeed
CCleaner
DLL Export Viewer
Fix Windows problems instantly — free, safe, and reliable. Optimize performance and keep your PC healthy.

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 | fixyfier.com | certdecoder.com |
| Pricing | — | |
| Platforms | ||
| Company | Startup from Greece · 20 - 49 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Fixyfier is a free and lightweight Windows optimization and repair tool that unifies essential maintenance utilities in one clean and intuitive interface. It allows users to perform advanced system repairs and cleanup operations with just a few clicks, eliminating the need to run multiple...
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.
Stop Paying Technicians! Fix All Windows Errors Yourself 🔧 (Fixyfier App Review)
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Fixyfier and Cert Decoder.
Fixyfier's answer
Fixyfier was created to address a common problem in the world of Windows maintenance: most repair tools tend to be overly complicated, slow, bloated with unnecessary features, or too aggressive in the changes they make. The idea for Fixyfier emerged from repeated real‑world scenarios where users and technicians needed a fast, straightforward way to solve everyday system issues without navigating complex interfaces or risking unwanted system modifications.
The project began as a simple internal utility designed to streamline frequent troubleshooting tasks. As its capabilities grew and its usefulness became clear, Fixyfier evolved into a polished, user‑friendly application focused on reliability, speed, and clarity. Today, it is available through the Microsoft Store and continues to improve, shaped by practical experience and real user needs.
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.
Fixyfier's answer
Fixyfier is built using:
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
Fixyfier's answer
Fixyfier is designed primarily for:
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Fixyfier's answer
A person should choose Fixyfier because:
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.
Fixyfier's answer
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Fixyfier's answer
Fixyfier stands out by combining simplicity, speed, and real practicality. It delivers a curated set of essential Windows repair and optimization tools without unnecessary bloat, confusing menus, or hidden upsells. Everything is packaged in a lightweight, ultra-fast interface that launches instantly thanks to its optimized Nuitka-based build. Fixyfier focuses on doing a few things extremely well — diagnosing issues quickly, guiding users to the right fixes, and presenting everything in a clean, friendly UI.
Share your experience with using Fixyfier 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 Fixyfier 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 Fixyfier and Cert Decoder, you can also consider the following products.

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When your computer is getting full, BleachBit quickly frees disk space.
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CCleaner cleans, speeds up and frees up space on business endpoints.
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