Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.

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.

Source Insight - Source Insight is a programming editor & code browser with built-in live analysis for C/C++, C#, Java, and more; helping you understand large projects.

CodeClimate - Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.

CodeSonar - CodeSonar, produced by GrammaTech, is source and binary code analysis software that finds critical defects that can crash systems, result in unexpected operations, threaten security, and more.

SideCI - SideCI is static code analysis Continous Integration service. Driven by GitHub Pull Requests, Analyze And Comment Violation Automatically. Supports Ruby, PHP, and JavaScript.