
Description: Trilium Notes is an open-source hierarchical note taking application focused on building large personal knowledge bases. It has a tree-structured notes system allowing easy organization of ideas and supports features like linking between notes, embedding media, tagging, encryption, etc.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Umbrella Note is a free, open-source note taking app for Windows, Mac and Linux. It allows users to create rich text notes, categorize them using tags and notebooks, and sync notes across devices. Key features include Markdown support, cloud sync, fast search, encryption options and customization.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API