
Description: Milkman is an open-source email marketing platform built for developers. It allows you to create and send email campaigns, manage subscribers, track analytics, and integrate with other services via APIs. Key features include drag-and-drop email builders, A/B testing, scheduling, and segmentation tools.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Advanced REST Client is an open-source API testing tool for developers. It allows making HTTP requests, inspecting responses, and testing REST and SOAP web services. It can export environments, save history, and authenticate requests.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API