AWS Config is a service that provides detailed inventory, configuration history, and configuration change notifications for AWS resources.
Pricing varies based on usage
Best Open Policy Agent Alternatives ranked by AI · updated Aug 2026
Open Policy Agent is an open-source policy engine that separates policy decisions from application and infrastructure code. It serves platform, security, and DevOps teams across Kubernetes, APIs, CI/CD, and cloud tooling.
Top 6 Open Policy Agent alternatives
Pepr is an open-source Kubernetes policy and automation framework for platform, security, and DevOps teams. It uses TypeScript-based capabilities to build admission...
Pros
- TypeScript development is more approachable than Rego for many application developers
- Supports both admission policies and event-driven Kubernetes automation
- Deploys as Kubernetes-native webhooks with a relatively small operational footprint
Cons
- Smaller ecosystem and community than Kyverno or Open Policy Agent
- TypeScript policies can require more custom code than Kyverno's declarative rules
- Primarily Kubernetes-focused rather than a general-purpose policy engine
Polaris is an integrated library system designed primarily for public libraries and consortia. It handles circulation, cataloging, acquisitions, serials, patron management, reporting,...
Pros
- Strong public-library circulation and consortium workflows
- Integrates closely with BiblioCommons discovery and engagement products
- Supports complex branch, policy, and collection structures
Cons
- Less suitable than Alma for advanced academic resource management
- Commercial pricing is not publicly transparent
- Best value often depends on adopting related BiblioCommons services
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
6
Kyverno is a policy management tool for Kubernetes that allows users to define policies as code. It helps in validating, mutating, and...
Pros
- Policy management through code
- Validation and mutation of configurations
Cons
- Requires policy definition expertise
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