Open Policy Agent vs Authelia: Which is Better in 2026?
Choosing between Open Policy Agent and Authelia comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Authelia is our overall pick for identity & access workflows. Pick Open Policy Agent if you need security.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Open Policy Agent
Unify policy enforcement across your entire software stack with a high-performance policy engine.
Best for you if:
- • You need security features specifically
- • Centralized policy engine for consistent enforcement across the stack.
- • Uses Rego, a high-performance declarative language for policy definition.
Authelia
Open-source authentication and authorization server
Best for you if:
- • You need identity & access features specifically
- • Authelia is an open-source authentication server providing SSO and 2FA for applications
- • It works as a reverse proxy companion to protect internal services with access control
| At a Glance |  Open Policy Agent |  Authelia |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Security | Identity & Access |
Rating | - | - |
Choose Open Policy Agent or Authelia?
Choose Open Policy Agent if
Unify policy enforcement across your entire software stack with a high-performance policy engine.
- Unifies policy enforcement across diverse systems
- Enhances developer productivity by externalizing policy
- Provides detailed audit trails for compliance and debugging
- Your work is security-shaped, not identity & access-shaped
Choose Authelia if
Open-source authentication and authorization server
- Open source SSO
- Self-hostable
- 2FA support
- Your work is identity & access-shaped, not security-shaped
| Feature | Open Policy Agent | Authelia |
|---|---|---|
| Pricing Model | Free | Free |
| User Rating | No ratings yet | No ratings yet |
| Categories | SecurityDevOps | Identity & AccessSecurity |
In-Depth Analysis
Open Policy Agent
Unify policy enforcement across your entire software stack with a high-performance policy engine.
Strengths
- +Unifies policy enforcement across diverse systems
- +Enhances developer productivity by externalizing policy
- +Provides detailed audit trails for compliance and debugging
- +High performance due to Rego language and in-memory data processing
- +Flexible and extensible for a wide range of use cases
Weaknesses
- -Requires learning a new declarative language (Rego)
- -Initial setup and integration can be complex for new users
- -Policy management can become intricate for very large and complex organizations
Key features
Authelia
Open-source authentication and authorization server
Strengths
- +Open source SSO
- +Self-hostable
- +2FA support
- +Good documentation
- +Privacy focused
Weaknesses
- -Setup complexity
- -Self-managed only
- -Learning curve
- -Smaller community
- -Maintenance needed
Key features
Pricing: Open Policy Agent vs Authelia
| Plan | Open Policy Agent | Authelia |
|---|---|---|
| Tier 1 | N/A | Free Free |
Pricing verified from each vendor's public pricing page. Compare in detail on Open Policy Agent pricing and Authelia pricing.
Who Should Use What?
On a budget?
Both are free. Compare plans on their websites.
Go with: Open Policy Agent
Want the highest-rated option?
Neither has ratings yet.
Too early to call on ratings — compare on features and pricing.
Value user reviews?
Neither has ratings yet.
Too early to call — neither has ratings yet.
3 Questions to Help You Decide
What's your budget?
Both are free. Pricing won't help you decide here.
What's your use case?
Open Policy Agent is a security tool. Authelia is in identity & access. Pick the category that matches your needs.
How important are ratings?
Neither has ratings yet.
Key Takeaways
Authelia
- Completely free
- Our pick for this comparison
Open Policy Agent
- Better fit for security
The Bottom Line
Authelia is our pick.
Frequently Asked Questions
Is Open Policy Agent or Authelia better?
Authelia is rated in our evaluation. Both are free.
What are Open Policy Agent and Authelia used for?
Open Policy Agent: Unify policy enforcement across your entire software stack with a high-performance policy engine.. Authelia: Open-source authentication and authorization server.
What does Open Policy Agent cost vs Authelia?
Open Policy Agent is completely free. Authelia is completely free. Visit their websites for detailed pricing.