
Description: ByteScout SQL Trainer is a free web app for learning SQL. It provides a browser-based interface for writing, running, and testing SQL queries on sample databases. The tool is good for beginners learning SQL.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Select Star SQL is an open-source SQL query builder that allows users to visually create complex SQL queries. It has a user-friendly drag and drop interface to select tables, columns, joins, and filters.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API