
CodeBeautify
Minify
Toptal
JSONLint
CodifyFormatter.org
MinifyIt.com
Free developer tools to minify, beautify, validate, encode and transform code and data.

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 | fastminify.com | certdecoder.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from Switzerland · 1 - 9 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


FastMinify is a free collection of online developer tools for minifying, beautifying, formatting, validating, encoding and transforming code and data. It supports JavaScript, CSS, HTML, JSON, XML, SVG, Base64, URLs and more, with tools designed for developers who need fast and privacy-focused...
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
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing FastMinify and Cert Decoder.
FastMinify's answer
FastMinify was created to provide developers with a cleaner and faster alternative to outdated online code tools. The goal was to build a modern platform focused on essential developer utilities with a strong emphasis on usability, performance and simplicity.
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.
FastMinify's answer
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
FastMinify's answer
FastMinify is built for web developers, frontend developers, backend developers, DevOps engineers, students and anyone who regularly works with code, APIs or web data formats.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
FastMinify's answer
FastMinify provides a fast and distraction-free experience with modern tooling, clean output formatting and support for multiple formats in one place. It is designed for developers who want quick utilities without accounts, bloated interfaces or workflow interruptions.
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.
FastMinify's answer
FastMinify is currently used by independent developers, freelancers, students and small development teams.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
FastMinify's answer
FastMinify focuses on simplicity, speed and privacy. All tools work instantly in the browser without registration, unnecessary UI complexity or intrusive popups. The platform combines code minification, beautification and encoding utilities in a single lightweight developer-focused experience.
Share your experience with using FastMinify 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 FastMinify since May 2026.
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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