OpenFGA vs Lets Encrypt: Which is Better in 2026?
Choosing between OpenFGA and Lets Encrypt 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: Lets Encrypt wins this matchup. 1Password is our overall Security pick. LastPass is our free Security pick. Pick OpenFGA if you need a fully free option.
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:
OpenFGA
Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.
Best for you if:
- • You want highly scalable and performant for authorization checks
Lets Encrypt
Free automated SSL/TLS certificates
Best for you if:
- • You want free SSL certificates
| At a Glance | OpenFGA | Lets Encrypt |
|---|---|---|
Starts at | Free 100% free | Free 100% free |
Category | Security Developer Tools | Security Automation |
Rating | n/a | 4.8/5 G2 4.8 20 reviews |
Free plan | Yes | Yes |
Watch out for | n/a | Certificates valid for only 90 days |
Choose OpenFGA or Lets Encrypt?
Choose OpenFGA if
- You want highly scalable and performant for authorization checks
- You want flexible modeling language supports various access control paradigms
Choose Lets Encrypt if
- You want free SSL certificates
- You want automated renewal
In-Depth Analysis
OpenFGA
Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.
OpenFGA's pricing is exceptionally generous, as it is entirely free.
Strengths
- Pro: Highly scalable and performant for authorization checks.
- Pro: Flexible modeling language supports various access control paradigms.
- Pro: Open-source and backed by the Cloud Native Computing Foundation (CNCF).
- Pro: Easy integration with existing applications via SDKs.
Weaknesses
- Con: Requires Docker for quick local setup, which might be an initial barrier for some.
- Con: New users may need to learn the specific modeling language and concepts.
Key features
Lets Encrypt
Free automated SSL/TLS certificates
Let's Encrypt offers an exceptionally fair and generous pricing model, as it is entirely free.
Watch out
Certificates valid for only 90 days
Strengths
- Pro: Free SSL certificates
- Pro: Automated renewal
- Pro: Wide support
- Pro: Open source
- Pro: Industry standard
Weaknesses
- Con: 90-day certificates
- Con: No wildcard easy
- Con: Setup complexity
- Con: Rate limits
- Con: No warranty
Key features
Pricing: OpenFGA vs Lets Encrypt
| Plan | OpenFGA | Lets Encrypt |
|---|---|---|
| Tier 1 | Free OpenFGA | $0 Free |
Pricing verified from each vendor's public pricing page. Compare in detail on OpenFGA pricing and Lets Encrypt pricing.
Key Takeaways
Lets Encrypt
- Completely free
- Our pick for this comparison
OpenFGA
- Choose if you want fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility
The Bottom Line
Lets Encrypt wins this matchup. 1Password is our overall Security pick. LastPass is our free Security pick.
Frequently Asked Questions
Is OpenFGA or Lets Encrypt better in 2026?
Lets Encrypt wins this matchup. 1Password is our overall Security pick. LastPass is our free Security pick. Pick OpenFGA for security workflows (main strength: highly scalable and performant for authorization checks). Pick Lets Encrypt for security workflows (main strength: free SSL certificates).
What are OpenFGA and Lets Encrypt used for?
OpenFGA: Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility. Lets Encrypt: Free automated SSL/TLS certificates.
What does OpenFGA cost vs Lets Encrypt?
OpenFGA is free. Lets Encrypt is free.
What's the main difference between OpenFGA and Lets Encrypt?
OpenFGA's main strength: highly scalable and performant for authorization checks. Lets Encrypt's main strength: free SSL certificates.