Onionshare - OnionShare lets you securely and anonymously share a file of any size with someone.

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

Wormhole.app - Wormhole lets you share files with end-to-end encryption and a link that automatically expires.

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.

ShareDrop - HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC

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.