
Description: Yaler is an open-source alternative to MailChimp for email marketing campaigns. It provides easy-to-use templates, automation tools, and analytics to help small businesses design, send, and track marketing emails.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: localhost.run is a platform that allows you to easily spin up local development environments inside your browser. It eliminates the need to install software locally by providing disposable, ready-to-code sandboxes for various languages and frameworks.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API