
Description: Hydrogen is an open-source text editor geared towards data science and machine learning. It allows users to write and run code in Python, R, and other languages interactively via kernels. Key features include integration with Jupyter notebooks, support for launching local computing sessions, a flexible interface with themes, and built-in data visualization.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Drumbit is a free online drum machine and beat maker. It allows you to create and edit drum patterns with a variety of realistic drum sounds. You can adjust tempo, swing, pattern length, and export your beats as audio files.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API