UUID GUID GENERATOR
Dummy Generator
Data Creator
BinaryMark Password Generator
Contract Generator
Mockaroo
Fileconv UUID Generator
A test data generator (CSV/JSON/XML/SQL). Unlimited number of rows.

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.
|
ECR
ExtendsClass Random Data Generator
|
|
|
|---|---|---|
| Website | extendsclass.com | certdecoder.com |
| Pricing | — | |
| Platforms | — | |
| Company | 2022 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

A test data generator online, no registration to generate data files directly in the browser. An API is available (You must create a free account)
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.

No features have been listed yet.
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 ExtendsClass Random Data Generator 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 ExtendsClass Random Data Generator 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 ExtendsClass Random Data Generator since Apr 2022.
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 ExtendsClass Random Data Generator and Cert Decoder, you can also consider the following products.

Create UUID GUID GENERATOR with one click. Copy, copy-all, or download as a text file for convenience. Perfect for all users. Single or Bulk option Available
Compare UUID GUID GENERATOR to ExtendsClass Random Data Generator or Cert Decoder:
Create Dummy Content The Easy Way With Dummy Generator
Compare Dummy Generator to ExtendsClass Random Data Generator or Cert Decoder:
Data generator that can create a table filled with pseudo-random content.
Compare Data Creator to ExtendsClass Random Data Generator or Cert Decoder:

Generate unique random passwords, random numbers, pins, keycodes, and usernames that match the criteria you specify.
Compare BinaryMark Password Generator to ExtendsClass Random Data Generator or Cert Decoder:

Make a signable contract that lives in a single file
Compare Contract Generator to ExtendsClass Random Data Generator or Cert Decoder:
A realistic data generator to test your app
Compare Mockaroo to ExtendsClass Random Data Generator or Cert Decoder: