GitHub is a web-based Git or version control service.

Trac is an open source, Web-based project management and bug tracking system.

The Bug Genie is free and open source, web-based project management and bug tracking system.

YouTrack is a commercial browser-based bug tracker, issue tracking system and project management software.

Marker is a visual bug reporting tool.

Redmine is a flexible project management web application.

Mantis Bug Tracker is a free and open source, web-based bug tracking system. The most common use of MantisBT is to track software defects.

OpenProject is a web-based project management system for location-independent team collaboration.

BamBam! is a project management software with integrated time tracking, Agile support, source & deploy, custom workflows and more.