
DUMMY DATABASE
Mockaroo
DataConstruct
Data Creator
Datamade
Random Data
JSONFormatter.org
JSONLint
JSON Formatter & Validator
JSON Editor Online
CodeBeautify
iLovePDF
DevToys
FreeFormatter
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.
DUMMY DATABASE
JSONFormatter.orgDUMMY 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.
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
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
JSONFormatter.org is an invaluable tool for anyone working with JSON data. Its simple and user-friendly interface makes formatting, validating, and analyzing JSON effortless. The website's clean design allows for easy navigation and top-notch functionality.
Based on our record, JSONFormatter.org seems to be more popular. It has been mentiond 29 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.
Note: It is crucial that your batchinput.jsonl file is correctly formatted. You can use online JSON formatters and validators like jsonformatter.org or jsonlint.com to verify its integrity before proceeding. - Source: dev.to / 9 months ago
Online Tools: Websites like JSONLint or jsonformatter.org let you paste JSON and get a minified version instantly. - Source: dev.to / 10 months ago
JSON Formatter & Validator This tool focuses on formatting JSON data while offering basic diff capabilities. โข Features: Validate, format, and compare JSON data. โข Use Case: Ideal for developers who need an all-in-one solution. โข Website: https://jsonformatter.org How to Use JSON Diff Tools. - Source: dev.to / over 1 year ago
3. JSON Formatter The GeoJSON file I used is super hefty, holding nested geographical information about country border locations as coordinate pairs, and information on country geometry, name etc. There are any number of ways you can show this file to get it to make sense, but I found another online tool that helped me break it down into readable chunks was JSON Formatter. It also helps validate JSON, useful if... - Source: dev.to / about 2 years ago
Hi HN, Simple online tools on the web have become unnecessary greedy. For example, * https://jsonformatter.org/ displays 7 ads on page load * https://convertcase.net/ had 4 ads plus a Google Vignette. And many more sites do the same thing. It's just noisy, which is why I created this VS Code Extension where you don't need to even leave your editor for your small web operations. I also built a Desktop app and an... - Source: Hacker News / almost 2 years ago
Mockaroo - A realistic data generator to test your app
JSONLint - JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
DataConstruct - We fake it till you make it!
JSON Formatter & Validator - The JSON Formatter was created to help with debugging.
Data Creator - Data generator that can create a table filled with pseudo-random content.
JSON Editor Online - View, edit and format JSON online