
Description: NxFilter is a free web filtering software that allows administrators to block access to inappropriate or harmful websites. It can filter content based on categories, keywords, domains, and more. NxFilter works by intercepting web requests and determining whether they should be allowed or blocked.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Privoxy is an open source web proxy with advanced filtering capabilities for privacy, data mining prevention, and access control. It allows customized blocking of ads, web trackers, and other unwanted content.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API