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

Clockify
calculator.net
Toggl
Time Card Calculator
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WorkMath.app
Harvest
Free time card calculator with lunch breaks, overtime, split shifts, and timesheet rounding. Weekly or bi-weekly, decimal or h:mm totals, printable — no signup, runs in your browser.

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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| Website | mockaroo.com | clocktally.com |
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What each product offers, as listed by its team.

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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 ClockTally since Jun 2026.
When comparing Mockaroo and ClockTally, you can also consider the following products.

GenerateData.com: free, GNU-licensed, random custom data generator for testing software
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Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.
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Faker is a PHP library that generates fake data for you
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
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