Open-Source IAM
Better Auth
Capability scores
Methodology →- Authentication
- 4.5
- SSO & Federation
- 4.5
- Authorization
- 4.0
- Lifecycle & Provisioning
- 3.5
- MFA & Passwordless
- 4.0
- Governance & Audit
- 3.0
- Developer Experience
- 5.0
- Deployment Flexibility
- 4.5
- Pricing Transparency
- 5.0
- Support & Ecosystem
- 3.0
Scored 0–5 against a published rubric. Independent analysis, no vendor sponsorship.
Overview
Better Auth is an open-source, framework-agnostic authentication library for TypeScript, providing email, social, passkeys, and multi-tenancy as code you run yourself.
Capability deep-dive
Excellent developer experience, framework flexibility, and full ownership of the auth layer are the strengths, and it has grown quickly. As a library you build and operate, it is not a managed service and lacks hosted governance.
Pricing
Free and open source.
Bottom line
A fast-rising open-source auth library for TypeScript teams that want to own their stack.
Independent editorial review. Author: Deepak Gupta. Last evaluated 2026-06-10.