Auth0 vs mkcert: Which is Better in 2026?
Choosing between Auth0 and mkcert 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:
Auth0
Identity platform for developers
Best for you if:
- • You need identity & access features specifically
- • Industry-leading identity platform
- • Authentication and authorization as a service
mkcert
Create local trusted dev certificates
Best for you if:
- • You need something completely free
- • You need developer tools features specifically
- • mkcert is a tool for creating locally-trusted development certificates
- • It generates TLS certificates for localhost without complex setup
| At a Glance |  Auth0 |  mkcert |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Identity & Access | Developer Tools |
Rating | 4.4/5 | 3.9/5 |
Free plan | Yes | Yes |
Choose Auth0 or mkcert?
Choose Auth0 if
Identity platform for developers
- Easy integration
- Many features
- Great docs
- Your work is identity & access-shaped, not developer tools-shaped
Choose mkcert if
Create local trusted dev certificates
- Local SSL certificates
- Easy to use
- No configuration
- You want a fully free tool (Auth0 requires payment)
- Your work is developer tools-shaped, not identity & access-shaped
| Feature | Auth0 | mkcert |
|---|---|---|
| Pricing Model | Freemium | Free |
| User Rating | ★4.4/5 388 reviews | ★3.9/5 148 reviews |
| Categories | Identity & AccessDeveloper Tools | Developer ToolsSecurity |
In-Depth Analysis
Auth0
Identity platform for developers
Strengths
- +Easy integration
- +Many features
- +Great docs
Weaknesses
- -Expensive at scale
- -Complex pricing
Key features
Value 65/100. Auth0's free tier at 25,000 MAUs is the most generous in the identity space, far ahead of Firebase Auth (free at 50K MAUs but with fewer features) and Clerk (500 MAUs free).
Watch out: Overage pricing at $0.07/MAU applies per user beyond the base limit. This was increased 300% from the previous $0.023/MAU rate, a 50,000-MAU B2C app on Essentials pays ~$3,500/month, not $35.
mkcert
Create local trusted dev certificates
Strengths
- +Local SSL certificates
- +Easy to use
- +No configuration
- +Cross-platform
- +Good for dev
Weaknesses
- -Dev only
- -Security considerations
- -Limited features
- -Manual renewal
- -Niche tool
Key features
Value 100/100. mkcert is entirely free and open-source, making its pricing exceptionally fair and generous.
Watch out: No direct hidden costs
Pricing: Auth0 vs mkcert
| Plan | Auth0 | mkcert |
|---|---|---|
| Tier 1 | 0 forever Free | N/A |
| Tier 2 | 35 /month Essentials | N/A |
| Tier 3 | 240 /month Professional | N/A |
| Tier 4 | Custom /month Enterprise | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Auth0 pricing and mkcert pricing.
Who Should Use What?
On a budget?
mkcert is free. Auth0 is freemium.
Go with: mkcert
Want the highest-rated option?
Auth0: 4.4/5 (388 reviews). mkcert: 3.9/5 (148 reviews).
Go with: Auth0
Value user reviews?
Auth0: 388 reviews (4.4/5). mkcert: 148 reviews (3.9/5).
Go with: Auth0
3 Questions to Help You Decide
What's your budget?
Auth0 is freemium. mkcert is free. Go with mkcert if free matters most.
What's your use case?
Auth0 is a identity & access tool. mkcert is in developer tools. Pick the category that matches your needs.
How important are ratings?
Auth0 is rated higher: 4.4/5 vs 3.9/5.
Key Takeaways
Auth0
- Higher user rating: 4.4/5 vs 3.9/5
- Larger review base (388 reviews)
- Free tier available
- Our pick for this comparison
mkcert
- Completely free
- Better fit for developer tools
The Bottom Line
Auth0 is our pick. That said, mkcert is free, hard to beat on price.
Frequently Asked Questions
Is Auth0 or mkcert better?
Auth0 is rated in our evaluation. Auth0 is freemium and mkcert is free.
What are Auth0 and mkcert used for?
Auth0: Identity platform for developers. mkcert: Create local trusted dev certificates.
What does Auth0 cost vs mkcert?
Auth0 is freemium (free tier + paid plans). mkcert is completely free. Visit their websites for detailed pricing.