
SourceForge
GitHub
GitLab
BitBucket
openDesktop.org
Gitea
Launchpad.net
OSOR
wxFormBuilder
Glade
Zenity
Yad
wxDev-C++
Modern Message Box Generator
easybashgui
Qt Creator
SourceForge
wxFormBuilderGitHub - 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.
Glade - Glade is a RAD tool to enable quick & easy development of user interfaces for the GTK+ toolkit...
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Zenity - Zenity is a tool that allows you to display GTK dialog boxes in commandline and shell scripts.
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
Yad - Yad (yet another dialog) is a fork of Zenity with many improvements, such as custom buttons...