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.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
ESLint - The fully pluggable JavaScript code quality tool
Invision - Prototyping and collaboration for design teams
SensioLabs Insight - PHP Project Quality Done Right.
Zeplin - Collaboration app for UI designers & frontend developers