Code Climate for Java - Code quality and test coverage for Java
DeepSource - Automated code reviews with static analysis.
JavaScript Operator Lookup - A full list of JavaScript operators with examples
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.
AirDroid Business - AirDroid Business, an enterprise-grade MDM solution, is designed to enable businesses mobility and productivity through remote access and control, device provisioning, policy application and management, kiosk mode, and geofencing.