Generate Data
Faker
DataConstruct
Beeceptor
Fake Data
ExtendsClass JSON Generator
Smock-it
A realistic data generator to test your app
Advanced Date Time Calculator
Date Time Counter
TheTimeCalculator.org
Time Calc
Time Calculator
Time to Decimal Calculator
Free online time interval calculator. Calculate time differences between two dates and times with timezone support.

Which is more popular?
Based on our record, Mockaroo seems to be more popular. It has been mentioned 27 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Mockaroo
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Time-Interval.com
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| Website | mockaroo.com | time-interval.com |
| Pricing | — | |
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What each product offers, as listed by its team.
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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
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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
Tracking Time-Interval.com since Jul 2025.
When comparing Mockaroo and Time-Interval.com, you can also consider the following products.

GenerateData.com: free, GNU-licensed, random custom data generator for testing software
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A full-featured date time calculator!
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Faker is a PHP library that generates fake data for you
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Date Time Counter official page. A 100% FREE software to keep tracking for your important events easily.
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The time calculator helps you either add/subtract times in hours, minutes, and seconds to a given date.
Compare TheTimeCalculator.org to Mockaroo or Time-Interval.com: