
Description: Buttercup is an open source, self-hosted password manager that allows users to store passwords and other sensitive information securely. It has desktop, mobile and browser extension clients available.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Qt-SESAM is an open-source, cross-platform diagramming and modeling application. It allows users to create UML diagrams, flowcharts, mockups, and more. Qt-SESAM has a simple and intuitive graphical interface for rapid prototyping.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API