
Mockaroo
DataConstruct
Data Creator
Datamade
Random Data
Generate and manage synthetic datasets easily with DUMMY DATABASE

Responsively
Sizzy
LT Browser by TestMu AI
browserling
BrowserStack
Google Chrome
TestMu AI (Formerly LambdaTest)
The browser for ambitious web developers that want to 5× their quality and efficiency.
Which is more popular?
Based on our record, Polypane seems to be more popular. It has been mentioned 40 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | dummydatabase.com | polypane.app |
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| Platforms | ||
| Company | Startup from Serbia · 1 - 9 employees · 2024 | 2019 |
| 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...
Developing and designing just got easier. The most powerful browser for web developers. Available on all platforms. Polypane shows your site in multiple viewports at once and keeps them all in sync while you work. Develop responsive websites and apps twice as fast and get better results, because...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Polypane is particularly recommended for web developers, front-end developers, UX/UI designers, and accessibility specialists who require an integrated environment for testing different screen sizes, resolutions, and accessibility features in a cohesive manner.
Walkthroughs and reviews on video.
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Polypanel Competition Results!
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DUMMY DATABASE and Polypane.
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
Share your experience with using DUMMY DATABASE and Polypane. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DUMMY DATABASE since Aug 2025.
The point isn't showing what they look like, it's that the result is randomized. Screenshots aren't, so that kind of defeats the purpose. The article starts with instructions on how to actually see and interact with the demos (the... - Source: Hacker News / 4 months ago
We also need to talk about Source Order vs. Tab Order—they’re more different than you’d expect 👀. Source Order is the sequence of nxodes inside their parent in the DOM. Tab Order is the sequence of focusable nodes navigated using the Tab... - Source: dev.to / over 1 year ago
URL: https://polypane.app What it does: A browser tailored for developers, enabling real-time testing and previewing of responsive designs. Why it's great: Test your site on multiple screen sizes simultaneously for smoother... - Source: dev.to / over 1 year ago
When comparing DUMMY DATABASE and Polypane, you can also consider the following products.
A realistic data generator to test your app
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Data generator that can create a table filled with pseudo-random content.
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LT Browser is a free dev friendly browser for developers and testers. You can see mobile view of website on different screen sizes and resolution on 50+ pre installed view ports. You can build, test and debug your website faster then ever.
Compare LT Browser by TestMu AI to DUMMY DATABASE or Polypane: