Comparison

Auth.js (NextAuth.js) vs Zitadel

On the evidence we track, Zitadel leads this comparison with a composite score of 65/100. 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 →Zitadel full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

Auth.js (NextAuth.js)55

★Zitadel65

Attribute comparison across 2 tools
Attribute	Auth.js (NextAuth.js)	ZitadelLeader
Vioscale score	55 / 100low · 47%	65 / 100low · 46%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	commercial	freemium
Price levelpricing.price_level	free	high
Transparentpricing.transparent	-	✓
Integrations
Countintegrations.count	1	12
Security
Disclosure policysecurity.disclosure_policy	✓	✓
Gdprsecurity.gdpr	-	✓
Scorecardsecurity.scorecard	6	-
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40next-auth%2Fprisma-adapter&per_page=100 · Last 12m: 0	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=zitadel%2Fzitadel&per_page=100 · Last 12m: 0
Reliability
Sla pctreliability.sla_pct	-	99.99
Status pagereliability.status_page	✓	✓
Adoption
Dependent reposadoption.dependent_repos	6,629	0
Github starsadoption.github_stars	28,345	14,862
Package downloads weeklyadoption.package_downloads_weekly	5,865,070	-
Activity
Commits last 30dactivity.commits_last_30d	7	42
Release
Cadence daysrelease.cadence_days	-	5
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	ISC	AGPL-3.0
Language
Primarylanguage.primary	TypeScript	Go
Market
Availabilitymarket.availability	-	Available in US, AU, CH · Popular in US, EU · HQ CH

Score

Vioscale score

Auth.js (NextAuth.js)55 / 100low · 47%

Zitadel65 / 100low · 46%

Pricing

Free tier

Auth.js (NextAuth.js)✓

Zitadel✓

Model

Auth.js (NextAuth.js)commercial

Zitadelfreemium

Price level

Auth.js (NextAuth.js)free

Zitadelhigh

Transparent

Auth.js (NextAuth.js)–

Zitadel✓

Integrations

Count

Auth.js (NextAuth.js)1

Zitadel12

Security

Disclosure policy

Auth.js (NextAuth.js)✓

Zitadel✓

Gdpr

Auth.js (NextAuth.js)–

Zitadel✓

Scorecard

Auth.js (NextAuth.js)6

Zitadel–

Vulnerabilities

Auth.js (NextAuth.js)Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40next-auth%2Fprisma-adapter&per_page=100 · Last 12m: 0

ZitadelCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=zitadel%2Fzitadel&per_page=100 · Last 12m: 0

Reliability

Sla pct

Auth.js (NextAuth.js)–

Zitadel99.99

Status page

Auth.js (NextAuth.js)✓

Zitadel✓

Adoption

Dependent repos

Auth.js (NextAuth.js)6,629

Zitadel0

Github stars

Auth.js (NextAuth.js)28,345

Zitadel14,862

Package downloads weekly

Auth.js (NextAuth.js)5,865,070

Zitadel–

Activity

Commits last 30d

Auth.js (NextAuth.js)7

Zitadel42

Release

Cadence days

Auth.js (NextAuth.js)–

Zitadel5

History

Auth.js (NextAuth.js)20 items

Zitadel20 items

License

Spdx

Auth.js (NextAuth.js)ISC

ZitadelAGPL-3.0

Language

Primary

Auth.js (NextAuth.js)TypeScript

ZitadelGo

Market

Availability

Auth.js (NextAuth.js)–

ZitadelAvailable in US, AU, CH · Popular in US, EU · HQ CH

Capabilities

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

Capability comparison for Auth & Identity Software
Capability	Auth.js (NextAuth.js)	Zitadel
Deployment
Hosting	Self-hosted only	Cloud + self-hosted
Methods
Social login	✓	✓
Passwordless	-	✓
Passkeys / WebAuthn	-	✓
Multi-factor auth	-	✓
Enterprise
SAML SSO	-	✓
SCIM provisioning	-	✓
B2B / multi-tenancy	-	✓
Standards
OpenID Connect provider	-	✓
Delivery
Hosted UI	Headless	Both
Access
RBAC	-	✓
Licensing
Self-hostable OSS core	✓	✓

Deployment

Hosting

Auth.js (NextAuth.js)Self-hosted only

ZitadelCloud + self-hosted

Methods

Social login

Auth.js (NextAuth.js)✓

Zitadel✓

Passwordless

Auth.js (NextAuth.js)-

Zitadel✓

Passkeys / WebAuthn

Auth.js (NextAuth.js)-

Zitadel✓

Multi-factor auth

Auth.js (NextAuth.js)-

Zitadel✓

Enterprise

SAML SSO

Auth.js (NextAuth.js)-

Zitadel✓

SCIM provisioning

Auth.js (NextAuth.js)-

Zitadel✓

B2B / multi-tenancy

Auth.js (NextAuth.js)-

Zitadel✓

Standards

OpenID Connect provider

Auth.js (NextAuth.js)-

Zitadel✓

Delivery

Hosted UI

Auth.js (NextAuth.js)Headless

ZitadelBoth

Access

RBAC

Auth.js (NextAuth.js)-

Zitadel✓

Licensing

Self-hostable OSS core

Auth.js (NextAuth.js)✓

Zitadel✓

What each one is

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

Auth.js (NextAuth.js)

An open-source authentication solution that integrates with web frameworks to provide OAuth-based authentication with customizable sign-in pages.

Independently observed

Zitadel

Leader

A multi-tenant, API-first identity and access management platform offering single sign-on, multi-factor authentication, passkeys, and complete audit trails. Available as a managed cloud service or self-hosted deployment, designed for developers building secure SaaS and B2B applications.

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 2026-08-14verify ↗

Zitadel

Leader

from $100/moHybridFree tier

Free tier available. Pro plan from $100/month with 25,000 DAU included. Usage-based overage pricing for additional capacity.

FreeFree
- 100 daily active users
- 3 external identity providers
- 5,000 management API requests
- Community support
- 1 management instance
Pro$100/month including 25,000 DAU and 500,000 API requests; overage pricing available
- 25,000 daily active users
- 500,000 management API requests
- 3 external identity providers
- Multifactor authentication
- Passkeys/WebAuthn
- +5 more
EnterpriseContact sales
- Custom scaling
- Custom compliance
- Custom security questionnaires
- Custom contract and MSA
- Up to 99.99% availability SLA
- +1 more

as of 2026-08-14verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	Auth.js (NextAuth.js)	Zitadel
WebPlatforms	✓	✓
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✓
HybridDeployment	✗	✓

Platforms

Web

Auth.js (NextAuth.js)✓

Zitadel✓

Deployment

Cloud / SaaS

Auth.js (NextAuth.js)✗

Zitadel✓

Self-hosted

Auth.js (NextAuth.js)✓

Zitadel✓

Hybrid

Auth.js (NextAuth.js)✗

Zitadel✓

Integrations

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

In common (1)

GitHub

Auth.js (NextAuth.js)

1 total - 0 not shared

GitHub

Independently observed

Zitadel

Leader

12 total - 11 not shared

Google
Microsoft
LDAP
SAML 2.0
SCIM 2.0
OpenID Connect
gRPC
connectRPC
REST API
Webhooks
Actions

Independently observed

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