JSON Generator - Create mock and sample JSON using a powerful template syntax
Devart Data Generator for MySQL - Populate MySQL databases with massive volumes of random test data using dbForge Data Generator for MySQL. Download a trial version now!
Mockaroo - A realistic data generator to test your app
Ideas Are Worthless - Like Product Hunt. But for Ideas.
Generate Data - GenerateData.com: free, GNU-licensed, random custom data generator for testing software
Softbuilder SB Data Generator - SB Data Generator is a simple and powerful tool to generate and populate selected tables or entire databases with realistic test data.