Selfhosted Awesome [Un]list
code review
review board
No Repo
* Available as free software under the MIT License.
phabricator
No Repo
* Code review tool build by facebook and used by WikiMedia, FB, dropbox etc. Comes with an integrated wiki, bug tracker, VC integration and a CLI tool called arcanist.
gerrit
No Repo
* Based on the Git version control, it facilitates software developers to review modifications to the source code and approve or reject those changes.