
Description: Mitaka is an open source annotation tool designed to annotate text sequences and visualize them together with their tags. It provides an intuitive interface for adding labels to text spans such as named entities, categories and relationships. It can be useful for data annotation and document classification projects.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Celestia is a free, open-source space simulation software that allows users to visualize and explore outer space. It renders high-resolution photographic images of planets, moons, stars, galaxies, and more from real astronomical data. Celestia is available for Windows, macOS, and Linux.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API