
Description: Zinepal is an open-source alternative to Mailchimp for email marketing and newsletters. It allows you to easily create, send, and track email campaigns without code. Zinepal is self-hosted, customizable, and has features like drag-and-drop email design,signup forms, and subscriber management.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Calibre Web is an open source ebook server that allows you to access and read your Calibre ebook library through a web browser from anywhere. It has features like book browsing, reading, downloading, email delivery, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API