Schnack - Schnack is an open source commenting system written in JavaScript.
ZoomIt - Presentation utility for zooming and drawing on the screen.
GitHub Team Discussions - Now there's more space to talk through your projects 💬
Virtual Magnifying Glass - Virtual Magnifying Glass, a free, open source, screen magnification program for Windows, Linux, FreeBSD and Mac OS X. Free full version download and instructions for use.
Product Hunt Reviews Widget - Embed and encourage PH reviews into your product
Epic Pen - A windows tool for drawing over your desktop and applications