Casdoor vs Auth0: Which is Better in 2026?
Choosing between Casdoor and Auth0 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.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Casdoor
An open-source, UI-first identity and access management and single sign-on platform.
Best for you if:
- • You need something completely free
- • Open-source IAM/SSO platform with a modern web UI.
- • Supports a wide range of authentication protocols and identity providers.
Auth0
Identity platform for developers
Best for you if:
- • Industry-leading identity platform
- • Authentication and authorization as a service
| At a Glance |  Casdoor |  Auth0 |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Identity & Access | Identity & Access |
Rating | - | 4.4/5 |
Free plan | Yes | Yes |
Choose Casdoor or Auth0?
Choose Casdoor if
An open-source, UI-first identity and access management and single sign-on platform.
- Comprehensive support for various authentication standards and identity providers
- Includes SaaS management capabilities for subscription businesses
- Open-source and UI-first for ease of use and customization
- You want a fully free tool (Auth0 requires payment)
Choose Auth0 if
Identity platform for developers
- Easy integration
- Many features
- Great docs
| Feature | Casdoor | Auth0 |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | No ratings yet | ★4.4/5 388 reviews |
| Categories | Identity & AccessSecurity | Identity & AccessDeveloper Tools |
In-Depth Analysis
Casdoor
An open-source, UI-first identity and access management and single sign-on platform.
Strengths
- +Comprehensive support for various authentication standards and identity providers
- +Includes SaaS management capabilities for subscription businesses
- +Open-source and UI-first for ease of use and customization
- +Scalable and performant for high-concurrency environments
- +Well-documented integration process
Weaknesses
- -Requires technical expertise for deployment and advanced configuration
- -Reliance on community for additional provider requests
Key features
Auth0
Identity platform for developers
Strengths
- +Easy integration
- +Many features
- +Great docs
Weaknesses
- -Expensive at scale
- -Complex pricing
Key features
Pricing: Casdoor vs Auth0
| Plan | Casdoor | Auth0 |
|---|---|---|
| Tier 1 | N/A | 0 forever Free |
| Tier 2 | N/A | 35 /month Essentials |
| Tier 3 | N/A | 240 /month Professional |
| Tier 4 | N/A | Custom /month Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Casdoor pricing and Auth0 pricing.
Who Should Use What?
On a budget?
Casdoor is free. Auth0 is freemium.
Go with: Casdoor
Want the highest-rated option?
Auth0 is rated 4.4/5. Casdoor has no ratings yet.
Go with: Auth0
Value user reviews?
Casdoor: no ratings yet. Auth0: 388 reviews (4.4/5).
Go with: Auth0
3 Questions to Help You Decide
What's your budget?
Casdoor is free. Auth0 is freemium. Go with Casdoor if free matters most.
What's your use case?
Both are identity & access tools. Compare their specific features to decide.
How important are ratings?
Auth0 is rated 4.4/5; Casdoor has no ratings yet.
Key Takeaways
Auth0
- Free tier available
- Our pick for this comparison
Casdoor
- Completely free
The Bottom Line
Auth0 is our pick. That said, Casdoor is free, hard to beat on price.
Frequently Asked Questions
Is Casdoor or Auth0 better?
Auth0 is rated in our evaluation. Casdoor is free and Auth0 is freemium.
What are Casdoor and Auth0 used for?
Casdoor: An open-source, UI-first identity and access management and single sign-on platform.. Auth0: Identity platform for developers.
What does Casdoor cost vs Auth0?
Casdoor is completely free. Auth0 is freemium (free tier + paid plans). Visit their websites for detailed pricing.