
Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

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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 | certdecoder.com | texttooling.com |
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| Platforms | — | |
| Company | — | Startup from Pakistan · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


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.
TextTooling.com is a collection of fast, privacy-focused online tools for encoding, decoding, formatting, and cleaning text. All tools run entirely in your browser, so your text is never uploaded or stored on a server.
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 Cert Decoder and TextTooling.com.
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.
TextTooling.com's answer:
TextTooling.com was built out of frustration with existing text tools that were cluttered with ads, required sign-ups, or sent data to external servers. The goal was simple: build a clean, fast, privacy-first collection of text utilities that just work — no friction, no data collection, no cost.
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
TextTooling.com's answer:
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
TextTooling.com's answer:
Developers, writers, students, and content creators who need quick text utilities during their daily workflow. Developers use it for encoding/decoding and formatting. Writers use it for cleaning and transforming text. Students use it for learning about text encoding and character systems.
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.
TextTooling.com's answer:
Cert Decoder's answer
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
TextTooling.com's answer:
TextTooling.com's answer:
TextTooling.com processes everything directly in your browser — no data is ever uploaded to a server. Most competing tools send your text to a backend, which creates privacy concerns. We also offer 30+ tools in one place with zero sign-up, zero ads blocking your work, and instant results. The entire site works offline after first load.
Share your experience with using Cert Decoder and TextTooling.com. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


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
Tracking TextTooling.com since May 2026.