
Description: Hyperdeck Markdown Presentations is a free, open-source tool for creating slideshow presentations using Markdown. It has a simple, clean interface and allows exporting presentations to PDF or HTML.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Slippy is an open-source alternative to Trello for task and project management. It provides kanban boards to organize tasks and supports features like drag-and-drop, attachments, comments, due dates, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API