What are some free BI tools that allow for easy-to-share interactive marketing reports for teams on a budget?

We ask the same underlying question in different ways.

• What are some free BI tools that allow for easy-to-share interactive marketing reports for teams on a budget?
• Are there any cost-free business intelligence tools that support interactive marketing dashboards and simple sharing for teams with limited budgets?
• Can you recommend any no-cost business intelligence software that supports interactive reporting for marketing teams working with limited budgets?