ufdbGuard - URL filter for the Squid web proxy
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
E2Guardian - Web filtering solution
Facebook Design - Resources for Designers from the Facebook Design team
Diladele Web Safety - Diladele Web Safety is the name of a simple, easy to use and powerful web filter for all kind of activities over the internet.
InVision Studio - The world’s most powerful screen design tool