Generate Data
Faker
DataConstruct
Beeceptor
Fake Data
ExtendsClass JSON Generator
Smock-it
A realistic data generator to test your app

DomainTools
Shodan
SaferICO
DomScan
SentryScore
ActiveDNS
IP Ninja
Dive into our data, search now! We offer robust APIs & data services for Security Teams worldwide.

Which is more popular?
Based on our record, Mockaroo seems to be a lot more popular than SecurityTrails. While we know about 27 links to Mockaroo, we've tracked only 1 mention of SecurityTrails.
Website, pricing, platforms and company facts side by side.
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| Website | mockaroo.com | securitytrails.com |
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What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.

No analysis of Mockaroo yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Best Free Sample Data Generator - Mockaroo.com
More videos
SecurityTrails Threat Intelligence Review | My Usage Experience
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Mockaroo and SecurityTrails. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

If you give it the rules to generate something, why can't it generate it? That's what something like Mockaroo[0] does. It's just more formal. That's pretty much what LLM training does, extracting patterns from a huge corpus of text. Then... - Source: Hacker News / over 1 year ago
A quick way to test this out is to use a tool like Mockaroo to generate some test data and then have a Glue Crawler analyse the data in S3 and create the required data catalog entries. - Source: dev.to / over 2 years ago
Mockaroo — Mockaroo lets you generate realistic test data in CSV, JSON, SQL, and Excel formats. You can also create mocks for back-end API. - Source: dev.to / over 2 years ago
I'm having the same issue. https://securitytrails.com/ also had my "secret" staging subdomain. I made a catch-all certificate, so the subdomain didn't show up in CT logs. It's still a secret to me how my subdomain ended up in their... - Source: Hacker News / over 1 year ago
When comparing Mockaroo and SecurityTrails, you can also consider the following products.

GenerateData.com: free, GNU-licensed, random custom data generator for testing software
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Domain name research, including comprehensive Whois Lookup, Reverse Whois Lookup and Whois History.
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Faker is a PHP library that generates fake data for you
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Web3 security SaaS for smart contracts, wallets and AI agents. Scan, audit, monitor and investigate across 25 EVM networks with 201 security detectors, GitHub CI, Watchtower, MCP and developer tools.
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