Bvs
Better Auth vs Clerk
Comparing two authentication platforms on pricing, features, free tier, and trade-offs.
Quick summary
Better Auth — The most comprehensive authentication library. Better Auth is a framework-agnostic, open-source authentication library for TypeScript with built-in plugins.
Clerk — Authentication and user management. Clerk provides drop-in authentication, user management, and organizations with pre-built UI components.
Feature comparison
| Feature | Better Auth | Clerk |
|---|---|---|
| Pricing model | Free | Freemium |
| Starting price | Free | $25/mo |
| Free tier | Yes | Yes |
| Open source | Yes | No |
| MFA | Yes | Yes |
| SAML/SSO | Yes | Yes |
| Free Tier | Self-hosted | 10k MAU |
| Self-hosted | Yes | No |
| Pre-built UI | No | Yes |
| Social Login | Yes | Yes |
| Organizations | Yes | Yes |
B
Better Auth
The most comprehensive authentication library
Pros
- Fully open source
- No vendor lock-in
- TypeScript-first
Cons
- You manage the infrastructure
- No hosted option
Clerk
Authentication and user management
Pros
- Beautiful pre-built components
- Organizations and B2B features
- Great Next.js integration
Cons
- Vendor lock-in on auth layer
- Gets expensive at scale
Which should you choose?
Choose Better Auth if you value open source and want the option to self-host, and a free tier is important for your stage. Choose Clerk if a free tier is important for your stage.
Frequently asked questions
Which is better, Better Auth or Clerk?
There is no universal “better.” For most teams, Better Auth is the safer default because Better Auth is open source, which means you can self-host and avoid vendor lock-in. Clerk is proprietary. For edge cases, the comparison table above highlights where each tool wins.
Is Better Auth cheaper than Clerk?
Better Auth starts at Free, while Clerk starts at $25/mo. Exact costs depend on usage — check both vendors' calculators before committing.
Can I migrate from Better Auth to Clerk?
Migration difficulty depends on how deeply Better Auth-specific features (APIs, SDK conventions, data schemas) are baked into your app. Most authentication migrations take days to weeks. Both vendors typically publish migration guides — check their docs.
Is Better Auth or Clerk open source?
Better Auth is open source; Clerk is a proprietary managed service.
Does Better Auth or Clerk have a free tier?
Both Better Auth and Clerk offer a free tier.
Which is best for startups and indie hackers?
Startups usually optimize for the lowest friction to ship and the cheapest possible free tier. The one with the most generous free tier here is Clerk. For production workloads, revisit the trade-offs in the feature table above.