Phabricator - Phacility - Phabricator
Refactor.io - Share your code instantly for refactoring and code review
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
codebeat - Automated code review for Swift
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
Stickler CI - Focus on your project, not formatting.