terracost

Estimates costs for AWS, Google Cloud, and Azure by ingesting pricing data into a MySQL database, enabling cross-provider analysis directly from Terraform plans as shown in the provider support docs.

Analyzes JSON Terraform plans to calculate prior and planned costs per resource, providing detailed cost differences for infrastructure changes, which is core to its value proposition.

Built as a Go library, it allows seamless integration into custom applications, APIs, or tools, offering flexibility beyond CLI-based solutions for teams building internal cost analysis.

Includes default usage configurations and supports custom overrides for resources needing extra data, as detailed in the usage.go file, enhancing accuracy for complex scenarios.

Optional progress tracking via the github.com/machinebox/progress library helps monitor long-running pricing data ingestion, with configurable update intervals for better visibility.