
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: StarCalc is a free, open-source spreadsheet program similar to Microsoft Excel. It has many of the core spreadsheet features like formulas, charts, pivot tables, and data analysis tools. StarCalc is lightweight, customizable, and available on Windows, Mac, and Linux.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API