vioscaleAI
Comparison

Auth.js (NextAuth.js) vs Auth0

On the evidence we track, Auth0 leads this comparison with a composite score of 82/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Auth.js (NextAuth.js) full profile →Auth0 full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Auth.js (NextAuth.js)52
★Auth082
Score
vioscaleAI score
Auth.js (NextAuth.js)52 / 100low · 40%
Auth082 / 100medium · 72%
Pricing
Free tier
Auth.js (NextAuth.js)✓
Auth0✓
Model
Auth.js (NextAuth.js)open_source
Auth0freemium
Price level
Auth.js (NextAuth.js)free
Auth0low
Transparent
Auth.js (NextAuth.js)✓
Auth0✗
Integrations
Count
Auth.js (NextAuth.js)1
Auth04
Security
Certifications
Auth.js (NextAuth.js)–
Auth0HIPAA BAA, PCI Compliance
Disclosure policy
Auth.js (NextAuth.js)✓
Auth0✓
Fedramp
Auth.js (NextAuth.js)–
Auth0✓
Gdpr
Auth.js (NextAuth.js)–
Auth0✓
Hipaa
Auth.js (NextAuth.js)–
Auth0✓
Iso27001
Auth.js (NextAuth.js)–
Auth0✓
Pci
Auth.js (NextAuth.js)–
Auth0✓
Scorecard
Auth.js (NextAuth.js)5.5
Auth0–
Soc2
Auth.js (NextAuth.js)–
Auth0✓
Trust center
Auth.js (NextAuth.js)–
Auth0https://auth0.com/security
Vulnerabilities
Reliability
Sla pct
Auth.js (NextAuth.js)–
Auth099.99
Status page
Auth.js (NextAuth.js)✓
Auth0✓
Adoption
Dependent repos
Auth.js (NextAuth.js)6,629
Auth0–
Github stars
Auth.js (NextAuth.js)28,363
Auth0–
Package downloads weekly
Auth.js (NextAuth.js)6,703,298
Auth0–
Activity
Commits last 30d
Auth.js (NextAuth.js)0
Auth0–
Release
History
Auth.js (NextAuth.js)20 items
Auth0–
License
Spdx
Auth.js (NextAuth.js)ISC
Auth0–
Language
Primary
Auth.js (NextAuth.js)TypeScript
Auth0–
Market
Availability
Auth.js (NextAuth.js)–
Auth0Available worldwide
Content
Faq
Auth.js (NextAuth.js)5 items
Auth06 items

Capabilities

Feature-by-feature on the axes that matter for auth & identity software. “-” means undocumented, not absent.

Deployment
Hosting
Auth.js (NextAuth.js)Self-hosted only
Auth0Cloud only
Methods
Social login
Auth.js (NextAuth.js)✓
Auth0✓
Passwordless
Auth.js (NextAuth.js)✓
Auth0✓
Passkeys / WebAuthn
Auth.js (NextAuth.js)✓
Auth0✓
Multi-factor auth
Auth.js (NextAuth.js)-
Auth0✓
Enterprise
SAML SSO
Auth.js (NextAuth.js)-
Auth0✓
SCIM provisioning
Auth.js (NextAuth.js)-
Auth0✓
B2B / multi-tenancy
Auth.js (NextAuth.js)-
Auth0✓
Standards
OpenID Connect provider
Auth.js (NextAuth.js)✓
Auth0✓
Delivery
Hosted UI
Auth.js (NextAuth.js)Headless
Auth0Both
Access
RBAC
Auth.js (NextAuth.js)-
Auth0✓
Licensing
Self-hostable OSS core
Auth.js (NextAuth.js)✓
Auth0✗

What each one is

The product in its own terms, so the numbers below have context.

Auth.js (NextAuth.js)

A suite of open-source authentication packages built on standard web APIs, designed to work with any JavaScript framework and runtime, with support for OAuth, passwordless authentication, and WebAuthn.

Independently observed

Auth0

Leader

Auth0 provides authentication, authorization, and identity management services for applications. It supports multiple authentication methods, including passwordless login, social connections, and enterprise federation, with built-in security features like fraud detection and compliance controls.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Auth.js (NextAuth.js)

Open sourceFree tier

Free and open source

as of verify ↗

Auth0

Leader
SubscriptionFree tier22-day trial

Free tier for up to 25,000 MAU; Professional plans customizable from 1,000+ MAU; Enterprise plans with 99.99% SLA; Free Startup program for one year

  • FreeFree
    • Passwordless Authentication
    • Unlimited Social Connections
    • 1 Enterprise Connection
    • Self-Service SSO
    • Pro Multi-Factor Authentication
    • +1 more
  • Professional-
  • EnterpriseContact sales
    • Enterprise Multi-Factor Authentication
    • Custom User & SSO Tiers
    • Enterprise Administration & Support
    • 99.99% SLA
    • Enterprise add-ons
  • StartupFree
    • Enterprise Identity Providers
    • Pro MFA & Password Protection
    • SSO for Auth0 Dashboard
    • $5,000 AWS credits
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Auth.js (NextAuth.js)✓
Auth0✓
CLI
Auth.js (NextAuth.js)✗
Auth0✓
Deployment
Cloud / SaaS
Auth.js (NextAuth.js)✓
Auth0✓
Self-hosted
Auth.js (NextAuth.js)✓
Auth0✓
On-premise
Auth.js (NextAuth.js)✗
Auth0✓
Hybrid
Auth.js (NextAuth.js)✗
Auth0✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Auth.js (NextAuth.js)

1 total
  • GitHub
Independently observed

Auth0

Leader
20 total
  • Datadog
  • Splunk
  • AWS
  • Azure
  • Slack
  • Segment
  • Salesforce
  • Tealium
  • Web3Auth
  • Spruce ID
  • Unstoppable Domains
  • Dock.io
  • Ethereum Name Service
  • NFT services
  • Okta
  • DataGuard
  • OneTrust
  • login.xyz
  • Ethereum Name System
  • MCP (Model Context Protocol)
Independently observed
Still deciding?

Auth.js (NextAuth.js) or Auth0: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.