
Mockaroo
DataConstruct
Data Creator
Datamade
Random Data
Generate and manage synthetic datasets easily with DUMMY DATABASE
replit
PictoBlox
Lego Boost
Nintendo Classic Mini
Robo Wunderkind
Brickit
Scratch
JavaScript coding site for kids, teens and creative adults!

Which is more popular?
Based on our record, CodeGuppy seems to be more popular. It has been mentioned 34 times since March 2021.
Website, pricing, platforms and company facts side by side.
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CodeGuppy
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| Website | dummydatabase.com | codeguppy.com |
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| Company | Startup from Serbia · 1 - 9 employees · 2024 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

Dummy Database is built to solve a simple, yet annoying problem — generating realistic test datasets quickly, without writing scripts or juggling Excel files. It’s designed for: - Developers needing dummy databases for prototyping & testing. - Analysts and BI specialists preparing demo...
No description of CodeGuppy yet.
What each product offers, as listed by its team.

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

Overall verdict
Why this product is good
Recommended for
No analysis of CodeGuppy yet.
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Learn To Code in JavaScript with CodeGuppy
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing DUMMY DATABASE and CodeGuppy.
DUMMY DATABASE's answer
A free, all-in-one data generation platform that builds everything from simple tables to full relational databases with advanced controls, unique event sequences, ERD visualization, built-in SQL querying, and multiple export formats — no limits, no paywalls.
DUMMY DATABASE's answer
Unlike other data generators, DUMMY DATABASE gives you full relational database creation, unique event simulations, advanced control over every field, built-in SQL querying, and generous free limits — so you can go from idea to test-ready data without restrictions, subscriptions, or hidden fees
DUMMY DATABASE's answer
DUMMY DATABASE's answer
Began as a project for myself to be able to have custom datasets for testing purpose I've decided that it could be useful for wider audience and finalized it as a full-stack web project
DUMMY DATABASE's answer
Python, Flask, HTML, CSS, Bootstrap, Redis, PostgreSQL, JavaScript
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Recommendations tracked on public social media and blogs since March 2021.

Tracking DUMMY DATABASE since Aug 2025.
Please use however any programming language / environment to implement the solution and then share the output as well as the solution. If you decide to use codeguppy.com -- there is a Share button in the top right corner of the coding... Source: over 3 years ago
I hope that you'll also find codeguppy.com useful in your own activities. In case you like it --- and you want to collaborate on it -- please shoot me an email (or message). Source: over 3 years ago
After many, many years... I finally made a basic demo using JavaScript and http://codeguppy.com (a p5.js-based platform). Source: over 3 years ago
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A realistic data generator to test your app
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Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
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Data generator that can create a table filled with pseudo-random content.
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