
Description: Penly is a free and open-source note taking app for Windows, macOS and Linux. It allows users to create rich text documents, add images and attachments, organize notes into notebooks, collaborate with others and sync across devices. Penly has a clean and intuitive interface, supports tagging and search, and integrates with cloud services.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Butterfly is an open-source, cross-platform SQL client that allows users to manage databases and data tables. It provides an intuitive GUI and supports connections to MySQL, PostgreSQL, SQLite and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API