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

Instant Username Search
NameQL
NameMing
Rebrandly
Nameclaim
AeroLeads
Shuuka
The Social Brand Search Engine; Find out if your brand, user, or product name is available on over 500 social networks.

Which is more popular?
Based on our record, KnowEm seems to be more popular. It has been mentioned 15 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | dummydatabase.com | knowem.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...
KnowEm allows you to check for the use of your brand, product, personal name or username instantly on over 500 popular and emerging social media websites. Grab your name and secure your brand before someone else does. Search over 500 popular social networks, over 150 domain names, and the entire...
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 KnowEm yet.
Walkthroughs and reviews on video.
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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 KnowEm.
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 KnowEm. 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.
KnowEm Http://knowem.com/ Social KnowEm allows you to check 100’s of social profiles at once to check availability. Looking for the perfect brand name? Check KnowEm first. Source: over 3 years ago
Facebook, Google. https://knowem.com/ for username searches. Source: over 3 years ago
Also: review knowem.com its a pretty decent service for social media creation. Source: almost 4 years ago
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Data generator that can create a table filled with pseudo-random content.
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Get smart domain name suggestions using synonyms, suffixes, prefixes, short url, new gtlds to find the perfect domain name. Generate ideas for social user names and check availability for free!
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