Softwr

Cloud · head to head

Terragrunt vs Vault

Terragrunt logo

Terragrunt

Cloud

The Open Source IaC Orchestrator Platform Teams Trust

From
Free
Rated
-
Full reviewWebsite
Vault logo

Vault

Cloud

Manage Secrets and Protect Sensitive Data

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Terragrunt additional complexity layer on top of Terraform; Vault vault 1.15.0 and later is licensed under the Business Source License 1.1, not an OSI open source licence, with IBM Corporation as licensor
  • They diverge on capability: Terragrunt covers Infrastructure orchestration, Vault covers Secrets management.

Where they differ

Only the attributes on which Terragrunt and Vault actually diverge.

Attributes where Terragrunt and Vault differ
AttributeTerragruntVault
Pricing modelUnknownopen-source
PlatformsAWS, Azure, GCPLinux, Windows, Mac, Cloud
FoundedUnknown2015

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cloud).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Terragrunt

  • Infrastructure orchestration
  • Run Queue
  • DRY configuration
  • Automated hooks
  • Infrastructure catalog
  • Least-privilege access

Only in Vault

  • Secrets management
  • Encryption
  • Authentication
  • Authorization
  • Audit logging
  • API access
  • High availability
  • Replication

What people use each for

The jobs each tool is most often brought in to do.

Terragrunt

  • Organizing Terraform code across multiple environmentsnot Vault
  • Automating infrastructure deployment workflowsnot Vault
  • Implementing infrastructure as code templates for developer self-servicenot Vault

Vault

  • Centrally storing and rotating secrets, API keys and database credentialsnot Terragrunt
  • Issuing short-lived dynamic credentials to applications instead of static passwordsnot Terragrunt
  • Encryption as a service and PKI certificate issuancenot Terragrunt

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Terragrunt

  • Additional complexity layer on top of Terraform
  • Requires understanding of Terraform concepts
  • Paid tier pricing not clearly published

Vault

  • Vault 1.15.0 and later is licensed under the Business Source License 1.1, not an OSI open source licence, with IBM Corporation as licensor
  • The Additional Use Grant forbids offering Vault to third parties on a hosted or embedded basis in a paid product that competes with IBM's paid versions of Vault
  • Each version only converts to MPL 2.0 four years after that version is published, and the Change Date is tracked per version
  • Replication, HSM support, namespaces, performance standby nodes, FIPS builds, control group authorisation, multi-factor authentication, secrets sync and lease count quotas all require a Vault Enterprise licence
  • A Vault Enterprise licence must be applied to the cluster before any Enterprise feature can be used

Pricing, plan by plan

Terragrunt

Free
  • Open SourceFree
    • Terragrunt CLI - completely free
    • Community support
  • Terragrunt Scale FreeFree
    • Free CI/CD pipeline
    • Unlimited runs and resources
    • For up to 25 infrastructure units
  • Terragrunt Scale Paid$undefined/custom
    • Volume pricing for more than 25 infrastructure units
    • Enterprise support

Vault

Free
  • Open SourceFree
    • Secrets management
    • Encryption as a service
    • Identity management
  • EnterpriseFree
    • Advanced features
    • Premium support
    • Dedicated updates

Which should you pick?

Choose Terragrunt if

  • You need infrastructure orchestration.
  • You want to start without paying.
  • You work on AWS, Azure, GCP.
  • You also want run queue.
Terragrunt review

Choose Vault if

  • You need secrets management.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Cloud.
  • You also want encryption.
Vault review

Questions people ask

Is Terragrunt or Vault better?
Neither clearly leads. Terragrunt starts at Free and Vault at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Terragrunt or Vault?
Terragrunt starts at Free and Vault at Free.
Does Terragrunt or Vault run on more platforms?
Terragrunt runs on AWS, Azure, GCP. Vault runs on Linux, Windows, Mac, Cloud.
Can I use Terragrunt for free?
Both have a free tier, so you can try either at no cost before committing.
What is Terragrunt best used for?
Terragrunt is most often used for organizing terraform code across multiple environments, automating infrastructure deployment workflows, implementing infrastructure as code templates for developer self-service. Of those, organizing terraform code across multiple environments and automating infrastructure deployment workflows are not what Vault is typically brought in for.
What can Terragrunt do that Vault cannot?
Terragrunt covers Infrastructure orchestration, Run Queue, DRY configuration, Automated hooks. Vault covers Secrets management, Encryption, Authentication, Authorization.

Answered from the vendors’ own pages

Terragrunt: Is Terragrunt free?

Yes, the Terragrunt CLI is completely free and open source. Terragrunt Scale offers a free tier for up to 25 infrastructure units.

Source
Vault: Is HashiCorp Vault free to use?

Yes, Vault is available as a free, open-source project. The community version includes secrets management, certificate generation and rotation, encryption services, and credential management. Vault Enterprise is a commercial offering with additional features.

Source
Terragrunt: What is the difference between Terragrunt and Terraform?

Terragrunt is an orchestration layer on top of Terraform that handles state management, DRY principles, and deployment automation without replacing Terraform itself.

Source
Vault: What are the differences between open-source Vault and Vault Enterprise?

Open-source Vault is free and self-hosted. Vault Enterprise includes additional features and commercial support. HashiCorp also offers Vault Dedicated on the HashiCorp Cloud Platform as a fully managed cloud option.

Source
Vault: Can I try HashiCorp Cloud Platform Vault without payment?

Yes, HashiCorp offers a free trial option for HCP Vault Dedicated. New users also receive a $500 credit to use across HashiCorp Cloud Platform services.

Source
Vault: What does Vault manage and protect?

Vault provides identity-based secrets management for users, machines, services, and AI agents. It automates authentication and authorization for access to secrets, passwords, certificates, encryption keys, and other sensitive data across your infrastructure.

Source
Share

Related pages

More on Terragrunt

More on Vault

Keep looking

Other head to heads