Discover and analyze Terraform and Terragrunt modules across GitHub, GitLab, and local filesystems. Terrawiz gives you clear visibility into IaC usage: inventory modules, track versions, and export reports.

• Discover Terraform (.tf) and Terragrunt (.hcl) modules across repositories
• Summarize usage by module source and version constraints
• Export results as table, JSON, or CSV
• Filter repositories by name (regex)
• Parallel scanning with adjustable concurrency
• Rate‑limit aware for GitHub/GitLab APIs

1. Install the CLI

npm install -g terrawiz

2. Set a GitHub token

# https://github.com/settings/tokens
export GITHUB_TOKEN=your_token

3. Run your first scan

# Scan a GitHub organization
terrawiz scan github:your-org

# Or scan a single repository
terrawiz scan github:your-org/your-repo

4. Export results (optional)

# JSON report
terrawiz scan github:your-org -f json -e audit.json

# CSV report
terrawiz scan github:your-org -f csv -e modules.csv

The examples below are captured from running the command against the repository github:hashicorp/terraform-guides.

Table (human‑readable):

terrawiz scan github:hashicorp/terraform-guides

Infrastructure as Code Module Usage Report
============================
Platform: GitHub
Target: hashicorp/terraform-guides
Scope: Single repository: terraform-guides
Total modules found: 28 (28 Terraform, 0 Terragrunt)
Total files analyzed: 135 (124 Terraform, 11 Terragrunt)

Module Summary by Source:

Azure/compute/azurerm (1 instances, type: registry)
  Versions:
    - 1.1.5: 1 instances

./modules/openshift (1 instances, type: local)

git::ssh://[email protected]/hashicorp-modules/hashistack-gcp (1 instances, type: git)

... (additional sources omitted for brevity)

JSON (API‑friendly):

{
  "metadata": {
    "platform": "GitHub",
    "moduleCount": 28,
    "timestamp": "2025-09-14T16:06:48.575Z"
  },
  "modules": [
    {
      "source": "Azure/compute/azurerm",
      "sourceType": "registry",
      "version": "1.1.5",
      "repository": "hashicorp/terraform-guides",
      "filePath": "infrastructure-as-code/azure-vm/main.tf",
      "lineNumber": 19
    }
  ]
}

CSV (spreadsheet‑ready):

module,source_type,file_type,version,repository,file_path,line_number,file_link
Azure/compute/azurerm,registry,terraform,1.1.5,hashicorp/terraform-guides,infrastructure-as-code/azure-vm/main.tf,19,https://github.com/hashicorp/terraform-guides/blob/master/infrastructure-as-code/azure-vm/main.tf#L19
./modules/openshift,local,terraform,,hashicorp/terraform-guides,infrastructure-as-code/k8s-cluster-openshift-aws/main.tf,42,https://github.com/hashicorp/terraform-guides/blob/master/infrastructure-as-code/k8s-cluster-openshift-aws/main.tf#L42
git::ssh://[email protected]/hashicorp-modules/hashistack-gcp,git,terraform,,hashicorp/terraform-guides,infrastructure-as-code/hashistack/dev/terraform-gcp/main.tf,22,https://github.com/hashicorp/terraform-guides/blob/master/infrastructure-as-code/hashistack/dev/terraform-gcp/main.tf#L22

• GitHub

  • Env var: GITHUB_TOKEN (required)
  • Scope: public repos work with a basic token; for private repos and org scans, grant repo (private) and read:org as needed.
  • GitHub Enterprise uses the same GITHUB_TOKEN; include the host in the source (e.g., github://github.company.com/org).

• GitLab

  • Env var: GITLAB_TOKEN (required)
  • Scope: read_api (or api) for private projects; sufficient rights to list projects and read files.
  • Self‑hosted GitLab uses the same GITLAB_TOKEN; include the host in the source (e.g., gitlab://gitlab.company.com/group).

• Local

  • No authentication required for local: sources.

• Command structure

  • terrawiz scan <source> [options]
  • terrawiz help [command]

• Commands

  • scan — Scan and analyze IaC modules from a target
  • help — Show help for the CLI or a command

• Positional arguments

  • source — what to scan. Supported forms:
    • GitHub (cloud): github:org or github:org/repo
    • GitHub Enterprise: github://host/org or github://host/org/repo
    • GitLab (cloud): gitlab:group or gitlab:group/project
    • GitLab Self‑Hosted: gitlab://host/group or gitlab://host/group/project
    • Local filesystem: local:., local:/abs/path, local:./relative/path
    • Note: Bitbucket is not supported yet.

• Options

  • -f, --format <format> — Output format: table (default), json, csv
  • -e, --export <file> — Write results to a file
  • -c, --concurrency <repos:files> — Concurrency (e.g., 5:10)
  • --limit <number> — Limit repositories to scan
  • --include-archived — Include archived repositories (default is skip)
  • -p, --pattern <regex> — Filter repositories by name pattern
  • --terraform-only — Scan only Terraform (.tf) files
  • --terragrunt-only — Scan only Terragrunt (.hcl) files
  • --disable-rate-limit — Disable API rate limiting
  • --debug — Enable verbose debug logging
  • [Deprecated] --org, --repo — Legacy flags (use the source argument instead)

• Filtering & scope

  • Focus on certain repos: -p "^terraform-"
  • Restrict file types: --terraform-only or --terragrunt-only
  • Include archived repos: --include-archived
  • Limit breadth for quick checks: --limit 10

• Performance & rate limits

  • Tune concurrency: -c 10:20 (repos:files)
  • Respect API limits by default; to disable: --disable-rate-limit
  • Use --debug to see detailed progress and timings

• Enterprise/self‑hosted targets

  • GitHub Enterprise: github://github.company.com/org
  • GitLab self‑hosted: gitlab://gitlab.company.com/group

• Local scanning

  • Scan current project: terrawiz scan local:.
  • Scan absolute path: terrawiz scan local:/path/to/terraform

• CI/CD & Docker

  • Docker (GitHub example):

    docker run --rm -e GITHUB_TOKEN=$GITHUB_TOKEN \
      ghcr.io/efemaer/terrawiz:latest scan github:your-org -f json

• No‑install option

  • Prefer not to install globally? Run once with: npx terrawiz scan github:your-org

We welcome contributions! See CONTRIBUTING.md for development setup and guidelines.

Quick start:

1. Fork the repository
2. Create a feature branch: git checkout -b feature/amazing-feature
3. Run checks: npm test && npm run lint && npm run format:check
4. Open a pull request

MIT — see LICENSE.