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

SQLite Viewer
SQL Fiddle
DB Fiddle
SQLite Query
Code for SQLite3
Create SQLite databases and execute SQL directly 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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Mockaroo
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| Website | mockaroo.com | fasttools.dev |
| Pricing | — | |
| Company | — | 2026 |
| Listed in |
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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 FastTools SQLite Playground since Mar 2026.
When comparing Mockaroo and FastTools SQLite Playground, you can also consider the following products.

GenerateData.com: free, GNU-licensed, random custom data generator for testing software
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Download Sqlite database Browser and explore Sqlite database components. Free Sqlite DB file browser allows to manage Sqlite Data with spontaneous user interface.
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Faker is a PHP library that generates fake data for you
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A tool for easy online testing and sharing of database problems and their solutions.
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We fake it till you make it!
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An online tool for testing, sharing and collaborating on SQL snippets
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