Coverity Scan - Find and fix defects in your Java, C/C++ or C# open source project for free

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.

Checkmarx - The industry’s most comprehensive AppSec platform, Checkmarx One is fast, accurate, and accelerates your business.

edX - Best Courses. Top Institutions. Learn anytime, anywhere.

Invicti (formerly Netsparker) - Netsparker Security Scanner is a simple-yet-powerful web-based security scanner that automatically identifies XSS, SQL Injection, and all the other vulnerabilities and security flaws in sites, web apps, and web services.

Acunetix - Audit your website security and web applications for SQL injection, Cross site scripting and other...