What is Auth.js (NextAuth.js)?
Auth.js is an open-source authentication library that provides OAuth and authentication mechanisms for web applications. It supports multiple JavaScript frameworks including Next.js, SvelteKit, Express, and Qwik.
Auth.js (NextAuth.js) pricing
We don't have Auth.js (NextAuth.js)'s full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Auth.js (NextAuth.js) does
The capabilities that matter for auth & identity software, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Hosting
- Self-hosted only
- Social login
- ✓
- Passwordless
- -
- Passkeys / WebAuthn
- -
- Multi-factor auth
- -
- SAML SSO
- -
- SCIM provisioning
- -
- B2B / multi-tenancy
- -
- OpenID Connect provider
- -
- Hosted UI
- Headless
- RBAC
- -
- Self-hostable OSS core
- ✓
Platform & deployment
Independently observed- Web
- Self-hosted
Integrations (5)
Independently observed- GitHub
- Next.js
- SvelteKit
- Express
- Qwik
Auth.js (NextAuth.js) alternatives
Other auth & identity software we track, ranked by the same independent score.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Auth.js (NextAuth.js), not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Package Downloads | 88 | 0.15 | 13.3 | ✓ |
| Reliability | 50 | 0.10 | 5.3 | ✓ |
| Price Level | 100 | 0.05 | 4.7 | ✓ |
| Capabilities | 46 | 0.07 | 3.2 | ✓ |
| Github Activity | 28 | 0.10 | 3.0 | ✓ |
| Github Stars | 84 | 0.03 | 2.4 | ✓ |
| Integrations | 22 | 0.07 | 1.6 | ✓ |
| Pricing Transparency | 25 | 0.06 | 1.5 | ✓ |
| Release Cadence | 0 | 0.06 | 0.0 | - |
| Security Posture | 5 | 0.23 | 0.0 | - |
| Stackoverflow Activity | 0 | 0.07 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 7 | mediumsource · 2026-07-31 · 65% |
Adoption
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | {"hosting":"self","hosted_ui":"headless","open_source":true,"social_login":true} | mediumsource · 2026-08-05 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 5 | mediumsource · 2026-08-05 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | TypeScript | highsource · 2026-07-31 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | ISC | highsource · 2026-07-31 · 99% |
Pricing
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-05 · 60% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Disclosure policy | Yes | mediumsource · 2026-08-05 · 60% |