
99Tools.net
100+ FREE No-Code Tools
1tools
30tools
A.Tools
FreeCodeTools.org
DevTool.io
Access 1006 secure, lightning-fast developer tools including code formatters, converters, validators, encoders, decoders, and utilities. 100% client-side.

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


xDevTools is a comprehensive suite of over 1000 free, client-side developer utilities. All processing is done directly in your browser, ensuring your data remains private and secure. Our tools help you work faster and more efficiently, covering a wide range of needs from formatting code to...
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.


No analysis of xDevTools yet.
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 xDevTools and Cert Decoder.
xDevTools's answer
xDevTools was created to solve a common pain point: developers constantly needing to hunt for individual online tools for different tasks, often dealing with usage limits, slow performance, or privacy concerns. We built a single, comprehensive platform with over 1000 tools that are all 100% client-side, lightning-fast, and completely free. No data leaves your browser, no accounts are required, and there are no usage caps — just instant, reliable utilities whenever you need them.
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.
xDevTools's answer
The platform is built with modern web technologies including vanilla JavaScript, HTML5, and CSS3, with all processing happening entirely client-side in the browser. The tools are optimized for performance to deliver results in milliseconds.
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
xDevTools's answer
Web developers, software engineers, and IT professionals who need quick, reliable, and secure developer utilities for everyday tasks like code formatting, validation, encoding, and conversion. It's ideal for anyone who values speed, privacy, and zero friction — with no sign-ups, no limits, and no costs.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
xDevTools's answer
Unlike many developer tool platforms that impose usage limits, require paid subscriptions, or send data to external servers, xDevTools is 100% free, unlimited, and client-side. You get instant access to over 1000 tools with no accounts, no restrictions, and complete privacy. Competitors often charge for premium features or limit free usage — xDevTools gives you everything without compromise.
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.
xDevTools's answer
Since xDevTools is a free, publicly available web tool, there are no specific enterprise customers to list. The platform is used by thousands of individual developers and engineers worldwide across various industries and company sizes.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
xDevTools's answer
xDevTools offers over 1000 client-side developer tools that are completely free with unlimited usage — no sign-ups, no daily caps, and no hidden fees. All processing happens locally in your browser, ensuring your data never leaves your device. It's a one-stop, lightning-fast toolkit for developers who need reliable utilities without friction or cost.
Share your experience with using xDevTools 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 xDevTools since Jul 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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