Synq vs NextAuth.
NextAuth is the open-source library your team self-hosts. Synq is the hosted platform you point at. The Next.js shape is deliberately compatible — but the everything-around-it (Dashboard, user DB, audit log, webhooks) is different.
Feature by feature
| Feature | NextAuth | Synq |
|---|---|---|
| auth() server function | ||
| Catch-all OIDC route handler | ||
| Provider config in code | Dashboard | |
| User DB (Adapter) | Self-host | |
| Audit log | Self-build | |
| Webhooks (HMAC-signed) | ||
| Hosted sign-in modal | ||
| JWKS-published key rotation | Self-build | |
| Telegram / Matrica / Solana SIWS | Some libs | |
| Per-Brand isolation | ||
| Maintenance burden on your team | Yours | Synq’s |
The deciding factors
Pick NextAuth if
You want auth code in your repo with zero external dependency, full source-level control, and your team is happy maintaining the user DB schema, JWKS rotation, email deliverability, and the audit log themselves.
Pick Synq if
You want the same NextAuth-style ergonomics but stop owning user storage, JWKS, audit, webhooks, theming, and provider configuration. Synq is the managed version with everything wired.
On NextAuth today?.
The cleanest migration of the bunch. Same auth() pattern, same route handler — provider config moves out of your repo and into the Dashboard.