
Description: Kotatsu is an open-source alternative to Jira for agile project management and issue tracking. It provides kanban boards, backlogs, roadmaps, reporting, and integrations with Git, Slack, and more to help teams collaborate on projects.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: TachiyomiJ2K is an open source comic, manga, and webtoon reader app for Android. It has a modern, intuitive interface and offers extensive comic discovery, tracking, and reading tools.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API