
RandTools
Randify
Generate Data
RANDOM.ORG
Randa
Rndgen.com
Randomness App
DUMMY DATABASE
Mockaroo
DataConstruct
Data Creator
Datamade
Random Data
Dummy Database is built to solve a simple, yet annoying problem โ generating realistic test datasets quickly, without writing scripts or juggling Excel files.
Itโs 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 โ simulate user actions and workflows. - Advanced data controls โ 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 โ no paywalls or limits.
RandTools
DUMMY DATABASERandTools's answer
RandTools is the only random generator hub that combines 65+ atomic generators with 14 "combo" tools that produce coherent multi-field outputsโa
fake person whose street, city, state, and zip actually match real US geography; a mock dataset where every row is internally consistent. Most
competitors give you isolated random fields; RandTools gives you ready-to-use structured data. Everything runs 100% client-sideโno signup, no tracking
of inputs, no data leaving the browserโand the entire site is statically generated for sub-second loads.
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 โ no limits, no paywalls.
RandTools's answer
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 โ so you can go from idea to test-ready data without restrictions, subscriptions, or hidden fees
RandTools's answer
RandTools serves three overlapping audiences:
Developers and QA engineers who need realistic test dataโfake users, mock API responses, sample addresses, UUIDsโwithout writing fixtures by hand.
Designers and content creators who use the color, gradient, palette, and word-level generators for moodboards, prototypes, and copywriting.
Casual decision-makers and gamersโpeople flipping coins, picking restaurants, naming D&D characters, or running icebreaker gamesโwho want a quick, reliable random source.
The unifying thread: anyone who needs random but useful output, fast.
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
RandTools's answer
DUMMY DATABASE's answer:
Python, Flask, HTML, CSS, Bootstrap, Redis, PostgreSQL, JavaScript
RandTools's answer
RandTools is a free public utility, not a B2B product, so it has no customer roster. It's used by individual developers, QA engineers, writers, designers, students, and tabletop gamers around the world.
Randify - Randify is a random song Spotify playlist generator that enables you to discover wild and interesting music from any style and anywhere in the world.
Mockaroo - A realistic data generator to test your app
Generate Data - GenerateData.com: free, GNU-licensed, random custom data generator for testing software
DataConstruct - We fake it till you make it!
RANDOM.ORG - RANDOM.ORG offers true random numbers to anyone on the Internet.
Data Creator - Data generator that can create a table filled with pseudo-random content.