GitBook began in mid-2014 as an open-source tool for developers to build documentation. Today we empower teams of all sizes to share knowledge and build great internal & external docs.

GitHub is a development platform inspired by the way you work.

Gitter is a chat and networking platform that helps to manage, grow and connect communities through messaging, content and discovery.

Over 100,000 developers and designers are more productive with Tower - the most powerful Git client for Mac and Windows.

Build your own site from scratch or generate one for your project. You get one site per GitHub account and organization, and unlimited project sites. Let‘s get started.

GitLab is a web-based DevOps lifecycle tool that provides a Git-repository manager providing wiki, issue-tracking and CI/CD pipeline features, using an open-source license, developed by GitLab Inc.

Work quickly, safely, and without headaches. The Git interface you've been missing all your life has finally arrived.