GitLab
Check the 3 useful tools on topic GitLab
toptal.com
gitignore.io
Create useful .gitignore files for your project by selecting from 509 Operating System, IDE, and Programming Language .gitignore templates
fork.dev
Fork - a fast and friendly git client for Mac and Windows
I switched to Fork from Sourcetree.
sourcetreeapp.com
Sourcetree | Free Git GUI for Mac and Windows
A Git GUI that offers a visual representation of your repositories. Sourcetree is a free Git client for Windows and Mac. It supports Git-flow out of the box.