AWS Config is a service that provides detailed inventory, configuration history, and configuration change notifications for AWS resources.
Pricing varies based on usage
Best Terraform Sentinel Alternatives ranked by AI · updated Aug 2026
Terraform Sentinel is a policy-as-code framework for enforcing governance rules in Terraform workflows and other HashiCorp products. It is aimed at infrastructure teams that need to prevent noncompliant changes before deployment.
Developer: HashiCorp
Price: Included with paid Terraform Cloud and Enterprise plans
🎯 developer.hashicorp.com/sentinel
Top 6 Terraform Sentinel alternatives
Cloud Custodian is an open-source policy engine for managing, securing, and optimizing cloud resources across AWS, Azure, and Google Cloud. It is...
Pros
- Supports automated governance, security, compliance, and cost policies
- Uses readable YAML policies that can trigger actions on schedules or events
- Integrates with serverless cloud services for low-maintenance execution
Cons
- Requires more policy engineering than managed alternatives such as AWS Config
- Cloud-provider coverage and features are uneven across AWS, Azure, and Google Cloud
- Limited built-in visual reporting compared with commercial governance platforms
Free and open source
Steampipe is an open-source tool that queries cloud APIs and other systems as relational data through SQL. It is aimed at engineers...
Pros
- SQL is often faster to adopt for inventory and audit queries than Cloud Custodian policies
- Supports many cloud and SaaS sources through a broad plugin ecosystem
- Includes practical workflows for dashboards, benchmarks, and scheduled checks
Cons
- Primarily query-oriented, so remediation is less native than in Cloud Custodian
- SQL-based checks can require separate automation for corrective actions
- Plugin quality and coverage vary by provider
Free and open source; commercial Turbot products available
4
Open Policy Agent
Open Policy Agent community
Open Policy Agent is an open-source policy engine that separates policy decisions from application and infrastructure code. It serves platform, security, and...
Pros
- More broadly reusable across infrastructure, applications, and APIs than Cloud Custodian
- Uses the powerful Rego policy language for complex decisions
- Has strong Kubernetes and cloud-native ecosystem support
Cons
- Requires more integration work to manage cloud resources directly
- Rego has a steeper learning curve than Cloud Custodian's YAML policies
- Does not provide Cloud Custodian-style resource actions out of the box
Free and open source
5
Prowler
Prowler
Prowler is an open-source cloud security assessment tool that checks environments against security and compliance frameworks. It targets security engineers and auditors...
Pros
- Provides more ready-made security checks than a new Cloud Custodian deployment
- Maps findings to recognized frameworks such as CIS and NIST
- Supports several major cloud providers and Kubernetes
Cons
- Focused more on assessment than broad resource lifecycle automation
- Remediation customization is generally less flexible than Cloud Custodian
- Large environments can generate substantial finding volume
Free and open source; paid cloud plans available
6
CloudQuery
CloudQuery
CloudQuery is an open-source cloud asset inventory and security platform that syncs infrastructure metadata into databases for SQL analysis. It is built...
Pros
- Creates a queryable asset inventory that is easier to join with external data than Cloud Custodian output
- Supports multi-cloud and SaaS sources through an extensible plugin model
- Works well with existing PostgreSQL, data warehouse, and BI workflows
Cons
- Primarily collects and analyzes data rather than remediating resources
- Requires a database and additional tooling for alerting or action workflows
- Can consume significant storage and API quota at scale
Free and open source; paid cloud plans available
How good are these alternatives?
Your feedback helps us improve the AI rankings.
✅ Thanks for your feedback!
Know a better alternative? 🙌
Suggest a product and our AI will verify it's a real alternative to Terraform Sentinel before adding it to the list.