Best Auth Protocols (2026)
Ranked picks for auth protocols. No "it depends."
JWT
The stateless authentication darling that everyone uses but often misuses, leading to security headaches.
Full Rankings
JWT
Nice PickThe stateless authentication darling that everyone uses but often misuses, leading to security headaches.
Why we picked it
JWT is the most widely adopted stateless auth protocol, but its flexibility is a double-edged sword. It beats opaque tokens in simplicity and cross-service portability, but it loses to PASETO in security guarantees — JWT's algorithm confusion and lack of built-in encryption have caused countless real-world breaches. For a protocol that claims to be simple, it demands an alarming amount of developer vigilance to use safely.
→ Pick it when you need a widely supported, self-contained token format for distributed systems and you're willing to enforce strict algorithm validation and short expiration times.
Pros
- +Stateless and scalable for distributed systems
- +Self-contained with all necessary info in the token
- +Easy to implement with widespread library support
Cons
- -Tokens can't be revoked without extra infrastructure
- -Prone to security issues if not properly validated
OAuth 2.0's identity upgrade. Because who doesn't want a standardized way to know who's logging in?
Why we picked it
OpenID Connect is the only identity layer that makes OAuth 2.0 actually usable for authentication. It adds a standardized ID token (JWT) and userinfo endpoint, so you don't have to hack together your own protocol on top of OAuth. SAML 2.0 is the closest competitor, but OIDC is simpler, JSON-based, and natively supported by every major identity provider. If you're building a modern app and need to know who your users are, there's no reason to pick anything else.
→ Pick it when you need a standardized, secure, and widely supported way to authenticate users via OAuth 2.0, and you want to avoid the complexity of SAML or custom solutions.
Pros
- +Built on OAuth 2.0, so it's widely supported and integrates seamlessly with existing authorization flows
- +Uses JWTs for secure, self-contained identity tokens that are easy to validate and parse
- +Provides standardized user profile claims, reducing custom implementation headaches
- +Enables single sign-on (SSO) across multiple applications without reinventing the wheel
Cons
- -Adds complexity on top of OAuth 2.0, which can be overkill for simple authentication needs
- -Requires careful JWT validation and key management to avoid security pitfalls
Head-to-head comparisons
Missing a tool?
Email nice@nicepick.dev and I'll add it to the rankings.