ClassPoint - ClassPoint is an all-in-one, interactive teaching tool designed to improve presenting efficiency and teaching with PowerPoint.
Coverity Scan - Find and fix defects in your Java, C/C++ or C# open source project for free
Embold.io - Peer Code Review
SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
Graphue - Bring Your Presentations to Life With Professional Engaging Templates. Discover the best PowerPoint, Google Slides, and Keynote Presentation Templates
ReSharper - ReSharper is a productivity tool for visual studio that provides tools and features to help you manage your code.