Fiber Guide Best Authentication for Fiber (2026)
Compare the best authentication solutions for Fiber. We review JWT middleware, Auth0, and more with Go integration.
Fiber's Express-like API includes built-in JWT middleware. We've evaluated auth solutions that work well with Fiber's high-performance architecture.
Why This Matters
Fiber is designed for speed. The right auth solution maintains performance while providing secure authentication for your API.
Key Considerations
Built-in JWT
Fiber has official JWT middleware. Simple setup for token validation. Works with any OIDC provider.
Middleware Pattern
Fiber middleware is Express-like. Chain auth middleware before protected routes.
Performance Focus
Fiber uses fasthttp. Auth middleware should be efficient. Avoid blocking operations.
Context Values
Store user in c.Locals(). Access in handlers with c.Locals("user").
Session Support
Fiber has official session middleware. Use for traditional web apps.
Our Recommendations
Auth0
Best Managed Excellent SupportAuth0 works with Fiber JWT middleware. Validate tokens with go-jwt-middleware concepts. 7,500 MAU free.
Use fiber/jwt with Auth0 JWKS 
Clerk
Best DX Good Support Official SDKClerk Go SDK works with Fiber. Modern auth, great DX. 10,000 MAU free. Validate JWTs easily.
go get github.com/clerk/clerk-sdk-go 
Supabase Auth
Best Free Good SupportSupabase Auth JWT validation with Fiber middleware. 50,000 MAU free. Great value.
Use fiber/jwt to validate Supabase tokens 
Firebase Authentication
Best Google Excellent Support Official SDKFirebase Auth with official Go SDK. ID token verification. Google ecosystem. Generous free tier.
go get firebase.google.com/go/v4 
Keycloak
Best Self-Hosted Good SupportKeycloak with go-oidc. Self-host for free. Validate OIDC tokens with Fiber middleware.
Use go-oidc with Fiber middleware Quick Comparison
| Service | TypeScript | Edge | Free Tier | Setup Time |
|---|---|---|---|---|
| Auth0 | none | — | 7,500 MAU | 20 min |
| Clerk | none | — | 10,000 MAU | 15 min |
| Supabase Auth | none | — | 50,000 MAU | 20 min |
| Firebase Authentication | none | — | 50,000 MAU | 20 min |
| Keycloak | none | — | Unlimited (self-host) | 30 min |
Quick Start
import (
"github.com/gofiber/fiber/v2"
jwtware "github.com/gofiber/contrib/jwt"
)
func main() {
app := fiber.New()
// Public routes
app.Get("/", publicHandler)
// JWT Middleware
app.Use(jwtware.New(jwtware.Config{
SigningKey: jwtware.SigningKey{Key: []byte(os.Getenv("JWT_SECRET"))},
}))
// Protected routes
app.Get("/protected", protectedHandler)
app.Listen(":3000")
}Common Integration Patterns
Fiber JWT + Auth0
Auth0 JWKS validation with Fiber JWT middleware.
Clerk + Fiber
Clerk SDK with custom Fiber middleware.
Firebase + Fiber API
Firebase Auth ID token validation in Fiber handlers.