Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
GitHub + Slack Integration - Full visibility into your GitHub projects right inside Slack
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.
Stack Overflow Documentation - A crowdsourced developer documentation
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.
ask-stack - Get answers from Stack Overflow directly in the Atom editor