In This Comparison
300%+ average ROI from custom software within three years of deployment
Source: Forrester 2024
3-10x faster development speed when using AI coding assistants
Source: McKinsey 2025
Side-by-Side Comparison
| Category | Clerk | Supabase |
|---|---|---|
| Focus | Dedicated auth | Auth + full backend |
| Pricing | $25/mo | $25/mo (whole platform) |
| UI Components | Excellent pre-built UI | Basic |
| Best For | Best auth experience | Supabase users |
| Integration | Any backend | Supabase ecosystem |
Clerk
- Focus
- Dedicated auth
- Pricing
- $25/mo
- UI Components
- Excellent pre-built UI
- Best For
- Best auth experience
- Integration
- Any backend
Supabase
- Focus
- Auth + full backend
- Pricing
- $25/mo (whole platform)
- UI Components
- Basic
- Best For
- Supabase users
- Integration
- Supabase ecosystem
Winner by Category
Best for Auth_ux
ClerkSuperior pre-built components and user management
Best for Value
SupabaseAuth included with database, storage, and functions
Best for Integration
SupabaseTighter integration with Supabase RLS and database
Our Recommendation
Choose Clerk for the best dedicated auth experience. Use Supabase Auth when you are already using Supabase for your backend.
“The best tool depends on what you are building and how you work. There is no universal winner. Pick the one that fits your workflow and budget, then ship something.”
When to Choose Each Tool
Choose Supabase
Using Supabase as your backend platform
Choose Clerk
Want the best auth UX with pre-built components
Overview
Clerk and Supabase Auth both handle authentication but differ in scope. Clerk is a dedicated auth service with polished pre-built UI components, user management, and multi-factor auth. Supabase includes auth as part of its PostgreSQL-based backend platform, tightly integrated with Row Level Security and database triggers.
Choosing
If you are using Supabase as your backend, its built-in auth is the simpler choice with native RLS integration. If you want the best possible auth experience with pre-built UI components regardless of your backend, Clerk is the dedicated solution.
Frequently Asked Questions
Can I use Clerk with Supabase?
Yes. Some developers use Clerk for auth and Supabase for database, though this requires custom JWT integration.
Which has better user management?
Clerk. Its user management dashboard, profile pages, and organisation features are more polished.
Is Supabase Auth free?
Supabase Auth is included with the free tier up to 50K monthly active users. Clerk has a free tier for up to 10K users.
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