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Terragrunt vs Spacelift

Terragrunt and Spacelift both land on Depends.

Spacelift

spacelift.io

Depends
Confidence: Medium

Buy if you're a DevOps or platform team orchestrating Terraform, OpenTofu, and Ansible at scale with governance needs.

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Terragrunt versus Spacelift
CompareTerragruntSpacelift
VerdictDependsDepends
Best forMulti-account AWS estatesPlatform teams running multi-tool IaC
Who it's not forSmall projects with a few modulesSolo devs running terraform apply locally
PrivacyOne public CVE (2026, arbitrary file deletion via malicious module manifest); keep versions current.⁹No known public vulnerabilities found in the sources reviewed.
Support qualityNo evidence in sources reviewedNo support evidence found in sources.
Public sentimentUsers rely on it to tame large multi-account Terraform estates, but a vocal minority finds it brittle and unnecessary.Users on Reddit and review sites generally praise Spacelift's multi-tool orchestration and ease of management, often preferring it over Terraform Cloud, though independent review volume remains small.
Biggest gotcha2026 file-deletion CVE means scrutinize third-party modules before running.⁹Starter tier starts at $399/month . steep for small teams.14

Pick Terragrunt when

  • Multi-account AWS estates
  • Dozens of Terraform environments
  • Terraform Cloud free-tier refugees
  • OpenTofu adopters

When Terragrunt is not a fit

  • Small projects with a few modules
  • Teams happy with vanilla Terraform or workspaces
  • Solo devs who don't want another config layer
  • Beginners still learning Terraform itself

Pick Spacelift when

  • Platform teams running multi-tool IaC
  • Regulated orgs needing policy-as-code
  • High-deployment-volume cloud teams
  • Teams outgrowing Terraform Cloud

When Spacelift is not a fit

  • Solo devs running terraform apply locally
  • Startups with a handful of stacks . CI scripts suffice
  • Teams without dedicated DevOps capacity
  • Anyone wanting a cheap, simple pipeline runner

Sources

  1. Terragrunt official siteterragrunt.gruntwork.io
    official
  2. Terragrunt Scaleterragrunt.gruntwork.io
    official
  3. Announcing the Terragrunt Scale Free Tiergruntwork.io
    official
  4. Terragrunt 1.0 Released!gruntwork.io
    official
  5. We're using Terragrunt with hundreds of AWS accounts (HN)news.ycombinator.com
    review
  6. Use Terragrunt or remain Vanilla tf? (Reddit)reddit.com
    review
  7. A lot of the problems Terragrunt solves have been... (Reddit)reddit.com
    review
  8. Why I Use Terragrunt Over Terraform/OpenTofu in 2025axelmendoza.com
    review
  9. CVE-2026-45099 (NVD)nvd.nist.gov
    security
  10. Vulnerable go-getter dependency issue #3087github.com
    security
  11. Terragrunt security pageterragrunt.gruntwork.io
    official
  12. Terragrunt GitHub repositorygithub.com
    official
  13. Spacelift Plans and Pricingspacelift.io
    official
  14. Spacelift vs Terraform Cloud vs ControlMonkeycontrolmonkey.io
    review
  15. Top 9 Spacelift Alternatives in 2026bunnyshell.com
    review
  16. Terraform Cloud vs Spaceliftscalr.com
    review