SourceForge
GitHub
GitLab
BitBucket
openDesktop.org
Gitea
Launchpad.net
OSOR
HelpNDoc
Document360
ClickHelp
Paligo
WinCHM
Adobe RoboHelp
Manula
Confluence
SourceForge
HelpNDocHelpNDoc is particularly recommended for technical writers, software developers, and content creators who need to produce and manage help guides and documentation across multiple formats. It's also suitable for teams who require collaborative features and comprehensive project management tools.
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.
Document360 - Self-service knowledge base software focused on SaaS Products & Enterprise Software Projects.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
ClickHelp - Create, translate, and publish technical documentation easily in one portal, anywhere in the world!
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
Paligo - Paligo is a state-of-the-art technical documentation platform with authoring, single-sourcing, content management, workflow and translation management.