Auth0 vs Supabase: Which is Better in 2026?
Choosing between Auth0 and Supabase 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: Supabase wins this matchup. Pick Auth0 if you need identity & access.
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 want easy integration
- • You want many features
Supabase
Open source Firebase alternative
Best for you if:
- • You want full PostgreSQL access
- • You want generous free tier
| At a Glance | Auth0 | Supabase |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Identity & Access | Data & Databases |
Rating | 4.5/5 | 4.6/5 |
Free plan | Yes | Yes |
Choose Auth0 or Supabase?
Choose Auth0 if
Identity platform for developers
- You want easy integration
- You want many features
- Your work is identity & access-shaped, not data & databases-shaped
Choose Supabase if
Open source Firebase alternative
- You want full PostgreSQL access
- You want generous free tier
- Your work is data & databases-shaped, not identity & access-shaped
| Feature | Auth0 | Supabase |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | ★4.5/5 420 reviews | ★4.6/5 218 reviews |
| Categories | Identity & AccessDeveloper Tools | Data & DatabasesAPI Tools |
In-Depth Analysis
Auth0
Identity platform for developers
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.
Strengths
- +Easy integration
- +Many features
- +Great docs
Weaknesses
- -Expensive at scale
- -Complex pricing
Key features
Supabase
Open source Firebase alternative
Supabase is the open-source Firebase alternative that developers actually want to use, Postgres database, authentication, storage, edge functions, and real-time subscriptions in one platform.
Watch out
Free projects pause after 7 days of inactivity: your app goes offline until someone visits it again. Not suitable for any production use, only for development and demos
Strengths
- +Full PostgreSQL access
- +Generous free tier
- +Open-source and self-hostable
- +Great developer experience
Weaknesses
- -Projects pause on free tier
- -Smaller ecosystem than Firebase
- -Less mature than alternatives
Key features
Pricing: Auth0 vs Supabase
| Plan | Auth0 | Supabase |
|---|---|---|
| Tier 1 | 0 forever Free | $0 Free |
| Tier 2 | 35 /month Essentials | $25 Pro |
| Tier 3 | 240 /month Professional | $599 Team |
| Tier 4 | Custom /month Enterprise | Custom Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Auth0 pricing and Supabase pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Auth0
Want the highest-rated option?
Auth0: 4.5/5 (420 reviews). Supabase: 4.6/5 (218 reviews).
Go with: Supabase
Value user reviews?
Auth0: 420 reviews (4.5/5). Supabase: 218 reviews (4.6/5).
Go with: Auth0
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Auth0 is a identity & access tool. Supabase is in data & databases. Pick the category that matches your needs.
How important are ratings?
Supabase is rated higher: 4.6/5 vs 4.5/5.
Key Takeaways
Supabase
- Higher user rating: 4.6/5 vs 4.5/5
- Free tier available
- Our pick for this comparison
Auth0
- Larger review base (420 reviews)
- Better fit for identity & access
The Bottom Line
Supabase wins this matchup.
Frequently Asked Questions
Is Auth0 or Supabase better?
Supabase is rated in our evaluation. Both are freemium.
What are Auth0 and Supabase used for?
Auth0: Identity platform for developers. Supabase: Open source Firebase alternative.
What does Auth0 cost vs Supabase?
Auth0 is freemium (free tier + paid plans). Supabase is freemium (free tier + paid plans). Visit their websites for detailed pricing.