
Description: Listmonk is an open-source newsletter and mailing list manager. It allows you to easily create, send, and manage email newsletters and mailing lists. Key features include subscriber management, email templates, A/B testing, analytics, and integration with services like Mailchimp.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: e-meld is an open source differencing and merging tool aimed at developers. It allows comparing text files such as source code, XML, HTML, etc. and merging the changes between versions. Key features include syntax highlighting, ignoring whitespace changes, 3-way merge comparisons.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API