Compare Terraform Configs Before You Apply
Review infrastructure changes, catch drift between environments, and audit plan outputs side by side. Know exactly what will change before you terraform apply.
Compare Terraform NowInfrastructure changes are high-stakes. A misconfigured security group, a changed instance type, or a removed resource block can cause outages, data loss, or security vulnerabilities. Reviewing Terraform plan outputs in terminal text is error-prone, and comparing HCL configs across environments without tooling means critical drift goes unnoticed. You need to see every resource, variable, and module change clearly before you apply.
Why Platform Teams Choose PowerDiff
Infrastructure-Aware Diffs
HCL block structure, resource definitions, and variable interpolations are highlighted. See exactly which resources, data sources, and modules changed.
Plan Output Comparison
Compare terraform plan outputs from different runs to understand how changes evolved. Verify that a fix addresses the intended resources without side effects.
Infrastructure Secrets Stay Safe
Terraform configs often contain provider credentials, state references, and internal network details. Everything stays in your browser -- zero server exposure.
Environment Drift Detection
Compare staging and production configs side by side to catch drift in security groups, IAM policies, instance sizes, and resource tags before it causes incidents.
Frequently Asked Questions
Can PowerDiff compare Terraform plan outputs?
Yes. Paste two terraform plan outputs side by side to compare what resources will be created, modified, or destroyed across different runs. This is useful for reviewing plan changes before approving an apply.
Does PowerDiff support HCL syntax highlighting?
PowerDiff provides syntax highlighting that covers HCL's block structure, string interpolation, and resource definitions. Resource types, variable references, and module blocks are visually distinct in the diff view.
Is it safe to compare Terraform configs that contain secrets?
Yes. PowerDiff runs 100% in your browser. Your Terraform configurations, state files, variable definitions, and any embedded credentials never leave your machine. No data is sent to any server.
Can I compare Terraform modules from different versions?
Absolutely. Paste module source code from two different versions to see what resources, variables, and outputs changed. This helps you understand the impact of a module upgrade before rolling it out.
Ready to Diff Your Infrastructure?
Paste your Terraform configs and see every change before you apply.
Compare Terraform Now