42matters Explorer - Explorer by 42matters is a research tool to visually explore databases of apps, publishers, audiences, SDKs, technologies, contacts and others.

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

Gravatar - Gravatar (an abbreviation for globally recognized avatar) is a service for providing...

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.

TryMason.com - Make front-end features, faster

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.