
Description: BlueGriffon is an open source WYSIWYG content editor for creating web pages and sites. It allows users to visually edit HTML, CSS, and Javascript while writing content, similar to desktop publishing software. It is free, lightweight, and available for Windows, macOS, and Linux.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Sigil is a free, open source ebook editor that allows users to edit EPUB format ebooks. It has a simple interface and supports editing book metadata, table of contents, and text formatting.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API