Which AWS service or tool helps users visualize, understand, and manage spending and usage over time?

Explanations:

AWS Organizations helps manage and govern multiple AWS accounts but doesn’t manage cost visualization.

AWS Pricing Calculator estimates costs for services but does not track or visualize usage over time.

AWS Cost Explorer provides tools to visualize, analyze, and manage AWS spending and usage trends over time.

AWS Service Catalog helps organize and deploy resources but does not track or manage costs.