
DUMMY DATABASE
Mockaroo
DataConstruct
Data Creator
Datamade
Random Data
CircuitLab
Logisim
LTspice
Circuit Tree
BOOLR
Multisim
DCACLab
Pspice
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 dashboards. - QA engineers creating data scenarios for testing. - SQL learners who want practice datasets on demand.
What makes it special? - Create from simple tables to full relational databases with PK/FK. - 35+ data types including Numbers, Dates, Names, Booleans, etc. - Unique Event Sequences — simulate user actions and workflows. - Advanced data controls — outliers, nulls, repeats, distributions. - ERD visualization to map relationships. - Built-in PostgreSQL editor to query generated data. - Export as CSV, XLSX, SQL DDL, or full ZIP. - Free up to 10,000 records per table for registered users — no paywalls or limits.
DUMMY DATABASE
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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
Based on our record, CircuitLab seems to be more popular. It has been mentiond 6 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I need someone to design and point me to the correct parts for a circuit that will use 2, 5V LiPo batteries that are rechargeable, in a circuit that is built to run a memory bank. Basically a CMOS circuit, very low current draw. I need the LED indication to replace a battery. The switching between them has to be fast enough that the memory doesn't lose the program on it. $100 to the first person with a full parts... Source: over 3 years ago
My go-to site for a quick simulation, and pretty schematics (that sounds almost NSFW) is circuitlab.com. Source: over 3 years ago
If you have a 10 band EQ pedal into a flat amp you can hear what these frequency shapes sound like. Once you understand what these preamps are doing, then you can learn about the electronic side, read the schematics, and start designing / playing with your own circuit mods / designs. A circuit simulator (like circuitlab.com) would be a good place to start doing that. Source: almost 4 years ago
Tips if you want to check is circuitlab.com. Its very fast and easy to check. Source: over 4 years ago
I used circuitlab.com to simulate this behaviour, to obtain this image, which show what happens to the voltage across a capacitor when it is charged by passing a constant current through it. Noite that the slope (gradient) of the plot is constant during the entire time current is passing. Source: over 5 years ago
Mockaroo - A realistic data generator to test your app
Logisim - Logisim is an educational tool for designing and simulating digital logic circuits.
DataConstruct - We fake it till you make it!
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
Data Creator - Data generator that can create a table filled with pseudo-random content.
Circuit Tree - Design and order Boards in Minutes