OPA Gatekeeper vs Open Policy Agent: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for OPA Gatekeeper and Open Policy Agent side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
OPA Gatekeeper
Enforce policies and governance for Kubernetes clusters using Open Policy Agent.
Best for you if:
- • You want leverages the powerful and flexible Rego policy language
Open Policy Agent
Unify policy enforcement across your entire software stack with a high-performance policy engine.
Best for you if:
- • You want a fully free tool (OPA Gatekeeper requires payment)
| At a Glance | Open Policy Agent | |
|---|---|---|
Starts at | Free plan | Free 100% free |
Category | DevOps Security | Security DevOps |
Rating | 4.5/5 G2 4.5 89 reviews | n/a |
Free plan | Yes | Yes |
Choose OPA Gatekeeper or Open Policy Agent?
Choose OPA Gatekeeper if
- You want leverages the powerful and flexible Rego policy language
- You want provides centralized policy management for Kubernetes
- You work in DevOps, not security
Choose Open Policy Agent if
- You want a fully free tool (OPA Gatekeeper requires payment)
- You want unifies policy enforcement across diverse systems
- You want enhances developer productivity by externalizing policy
- You work in security, not DevOps
In-Depth Analysis
OPA Gatekeeper
Enforce policies and governance for Kubernetes clusters using Open Policy Agent.
Strengths
- Pro: Leverages the powerful and flexible Rego policy language
- Pro: Provides centralized policy management for Kubernetes
- Pro: Enhances security and compliance posture of clusters
- Pro: Prevents misconfigurations before they are applied
- Pro: Open-source and community-driven
Weaknesses
- Con: Requires learning Rego for complex policies
- Con: Can add latency to API requests if policies are complex
- Con: Initial setup and policy definition can be challenging for beginners
Key features
Open Policy Agent
Unify policy enforcement across your entire software stack with a high-performance policy engine.
Strengths
- Pro: Unifies policy enforcement across diverse systems
- Pro: Enhances developer productivity by externalizing policy
- Pro: Provides detailed audit trails for compliance and debugging
- Pro: High performance due to Rego language and in-memory data processing
- Pro: Flexible and extensible for a wide range of use cases
Weaknesses
- Con: Requires learning a new declarative language (Rego)
- Con: Initial setup and integration can be complex for new users
- Con: Policy management can become intricate for very large and complex organizations
Key features
Key Takeaways
OPA Gatekeeper
- Choose if you want enforce policies and governance for Kubernetes clusters using Open Policy Agent
Open Policy Agent
- Choose if you want unify policy enforcement across your entire software stack with a high-performance policy engine
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Only OPA Gatekeeper has a published user rating (4.5/5 from 89 reviews); Open Policy Agent has none we can show.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do OPA Gatekeeper and Open Policy Agent compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Only OPA Gatekeeper has a published user rating (4.5/5 from 89 reviews); Open Policy Agent has none we can show. Both have a free plan.
What are OPA Gatekeeper and Open Policy Agent used for?
OPA Gatekeeper: Enforce policies and governance for Kubernetes clusters using Open Policy Agent. Open Policy Agent: Unify policy enforcement across your entire software stack with a high-performance policy engine.
What does OPA Gatekeeper cost vs Open Policy Agent?
OPA Gatekeeper has no public paid-plan price on file. Open Policy Agent is free.
What's the main difference between OPA Gatekeeper and Open Policy Agent?
OPA Gatekeeper's main strength: leverages the powerful and flexible Rego policy language. Open Policy Agent's main strength: unifies policy enforcement across diverse systems.