With Kanboard, you can associate one or many tags to a task. You can define tags globally for all projects or only for a specific project.
From the task form, you can enter the desired tags:
The auto-completion form will show up to suggest available tags.
You can also create tags directly from the task form. By default, when you create tags from a task form they are associated to the current project:
All tags can be managed in the project settings.
To define tags globally for all projects, go to the application settings:
To search tasks based on tags, just use the attribute "tag":