Comparison

Authelia vs Clerk

On the evidence we track, Clerk leads this comparison with a composite score of 72/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Authelia full profile →Clerk full profile →

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Authelia64

★Clerk72

Attribute comparison across 2 tools
Attribute	Authelia	ClerkLeader
Vioscale score	64 / 100low · 41%	72 / 100medium · 71%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	open_source	freemium
Price levelpricing.price_level	free	low
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	135	5
Security
Disclosure policysecurity.disclosure_policy	✓	✓
Gdprsecurity.gdpr	-	✓
Hipaasecurity.hipaa	-	✓
Scorecardsecurity.scorecard	9.8	-
Soc2security.soc2	-	✓
Vulnerabilitiessecurity.vulnerabilities	Count: 7 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fauthelia%2Fauthelia%2Fv4&per_page=100 · Last 12m: 3 · Max severity: CRITICAL	-
Reliability
Sla pctreliability.sla_pct	-	99.99
Status pagereliability.status_page	-	✓
Adoption
Dependent reposadoption.dependent_repos	0	-
Github starsadoption.github_stars	28,711	-
Activity
Commits last 30dactivity.commits_last_30d	100	-
Release
Cadence daysrelease.cadence_days	16	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	Apache-2.0	-
Language
Primarylanguage.primary	Go	-
Market
Availabilitymarket.availability	-	Available worldwide

Score

Vioscale score

Authelia64 / 100low · 41%

Clerk72 / 100medium · 71%

Pricing

Free tier

Authelia✓

Clerk✓

Model

Autheliaopen_source

Clerkfreemium

Price level

Autheliafree

Clerklow

Transparent

Authelia✓

Clerk✓

Integrations

Count

Authelia135

Clerk5

Security

Disclosure policy

Authelia✓

Clerk✓

Gdpr

Authelia–

Clerk✓

Hipaa

Authelia–

Clerk✓

Scorecard

Authelia9.8

Clerk–

Soc2

Authelia–

Clerk✓

Vulnerabilities

AutheliaCount: 7 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fauthelia%2Fauthelia%2Fv4&per_page=100 · Last 12m: 3 · Max severity: CRITICAL

Clerk–

Reliability

Sla pct

Authelia–

Clerk99.99

Status page

Authelia–

Clerk✓

Adoption

Dependent repos

Authelia0

Clerk–

Github stars

Authelia28,711

Clerk–

Activity

Commits last 30d

Authelia100

Clerk–

Release

Cadence days

Authelia16

Clerk–

History

Authelia20 items

Clerk–

License

Spdx

AutheliaApache-2.0

Clerk–

Language

Primary

AutheliaGo

Clerk–

Market

Availability

Authelia–

ClerkAvailable worldwide

Capabilities

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

Capability comparison for Auth & Identity Software
Capability	Authelia	Clerk
Deployment
Hosting	Self-hosted only	Cloud only
Methods
Social login	✗	✓
Passwordless	✓	-
Passkeys / WebAuthn	✓	-
Multi-factor auth	✓	✓
Enterprise
SAML SSO	✗	✓
SCIM provisioning	-	-
B2B / multi-tenancy	-	✓
Standards
OpenID Connect provider	✓	✓
Delivery
Hosted UI	Hosted	Both
Access
RBAC	✓	✓
Licensing
Self-hostable OSS core	✓	✓

Deployment

Hosting

AutheliaSelf-hosted only

ClerkCloud only

Methods

Social login

Authelia✗

Clerk✓

Passwordless

Authelia✓

Clerk-

Passkeys / WebAuthn

Authelia✓

Clerk-

Multi-factor auth

Authelia✓

Clerk✓

Enterprise

SAML SSO

Authelia✗

Clerk✓

SCIM provisioning

Authelia-

Clerk-

B2B / multi-tenancy

Authelia-

Clerk✓

Standards

OpenID Connect provider

Authelia✓

Clerk✓

Delivery

Hosted UI

AutheliaHosted

ClerkBoth

Access

RBAC

Authelia✓

Clerk✓

Licensing

Self-hostable OSS core

Authelia✓

Clerk✓

What each one is

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

Authelia

A lightweight, open-source authentication system that enables multi-factor authentication and single sign-on for web applications. It integrates with reverse proxies to control access and comes with a web-based portal for user and access management.

Independently observed

Clerk

Leader

A cloud-based authentication and user management platform offering prebuilt UI components, APIs, and dashboards to implement user sign-in, profile management, organizations, and billing features.

Independently observed

Pricing

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

Authelia

Open sourceFree tier

Open source

as of 2026-08-14verify ↗

Clerk

Leader

from $0.02/moSubscriptionFree tier

From $25/month. Free tier with 10,000 MAUs.

FreeFree
- Sign-in and sign-up
- Customizable sign-in pages
- Custom domain
- Profile management
- Social login
Pro$25/month plus $0.02 per additional MAU
- All Free features
- Remove Clerk branding
- Custom session duration
- Password complexity requirements
- User ban/unban
- +4 more
EnterpriseContact sales

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	Authelia	Clerk
WebPlatforms	✓	✓
iOSPlatforms	✗	✓
AndroidPlatforms	✗	✓
LinuxPlatforms	✓	✗
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✗
On-premiseDeployment	✓	✗

Platforms

Web

Authelia✓

Clerk✓

iOS

Authelia✗

Clerk✓

Android

Authelia✗

Clerk✓

Linux

Authelia✓

Clerk✗

CLI

Authelia✓

Clerk✓

Deployment

Cloud / SaaS

Authelia✗

Clerk✓

Self-hosted

Authelia✓

Clerk✗

On-premise

Authelia✓

Clerk✗

Integrations

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

Authelia

50 total

1Password
Active Directory
Ansible AWX
Apache Guacamole
Argo CD
Bitwarden
BookStack
Budibase
Caddy
Chronograf
Coder
Docker
Drupal
EspoCRM
Express.js
FreeIPA
FreshRSS
Gitea
GitLab
GLAuth
Grafana
HAProxy
Harbor
HashiCorp Vault
+26 more

Independently observed

Clerk

Leader

5 total

Google OAuth
GitHub OAuth
Google Workspace
Convex
MCP

Independently observed

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