OpenTools

Open source Auth & identity

Keycloak

96 · Healthy

Identity and access management server with SSO, OIDC, SAML and user federation (CNCF).

Free to useApache-2.0★ 37kLast commit yesterday

authentik

91 · Healthy

Identity provider with flows, SSO across OIDC, SAML, LDAP and a proxy outpost.

Free core, paid extrasMIT★ 26kLast commit yesterday

Logto

86 · Healthy

Auth and identity service for SaaS and AI apps, built on OIDC with organizations and RBAC.

Free core, paid extrasMPL-2.0★ 15kLast commit yesterday

ZITADEL

84 · Healthy

Multi-tenant identity platform with event-sourced audit trail and B2B organizations.

Free, share hosted changesAGPL-3.0Relicensed 2025★ 15kLast commit 3 days ago

Hanko

84 · Healthy

Authentication server with passkeys, passwords, social login and drop-in web components.

Free, share hosted changesAGPL-3.0★ 9.0kLast commit 4 days ago

Better Auth

83 · Healthy

TypeScript authentication framework with email and social login, passkeys, two-factor, organizations and SSO plugins.

Free to useMIT★ 30kLast commit yesterday

Ory Kratos

78 · Stable

Headless identity and user-management server with an API-first design.

Free to useApache-2.0★ 14kLast commit 2 months ago

Pocket ID

78 · Stable

Lightweight OpenID Connect provider that signs users in to your apps with passkeys only.

Free to useBSD-2-Clause★ 9.5kLast commit 2 days ago

SuperTokens

74 · Stable

Authentication backend with prebuilt UI, sessions and multi-tenancy.

Free core, paid extrasApache-2.0★ 15kLast commit 8 days ago

Authelia

71 · Stable

Single sign-on and two-factor portal that sits in front of web apps via a reverse proxy.

Free to useApache-2.0★ 29kLast commit 2 days ago

Authelia

Single sign-on and two-factor portal that sits in front of web apps via a reverse proxy.

Alternative to

Will it still be around?

Stable

Score 71/100

Details

Can a business use it freely?

Free to use

Apache-2.0 · open source (permissive)

Details
Authelia screenshot 1
Authelia screenshot 2
Authelia screenshot 3
Authelia screenshot 4

Flat Rate Deploy

Monthly cost

Authelia on OpenTools
$15
Okta
$150

You save each month

$135/mo

90% less than today

Saving from month one

You save

Over 3 years
$4,860
In year one
$1,620

List price checked 7 Oct 2026 · Source · Disclaimer

Health score: 71/100

Stable · activity, bus factor and issue responsiveness, from GitHub

Score v2 · How it works

Activity

45% weight

100/100

  • Last commit 2 days ago (100/100).
  • 2485 commits in the past 12 months (100/100).
  • 16 releases in the past 12 months (100/100).

Bus factor

30% weight

8/100

  • Top contributor wrote 94% of the last 16 commits (past 12 months).
  • 2 people authored those commits.

Responsiveness

25% weight

94/100

  • 96% of all issues are closed (58 open, 1429 closed) (100/100).
  • 27 of 30 recent issues got a reply or were closed (90/100).

License

Free to use

Apache-2.0 · Open source (permissive)

What you need to do

Use, change, host and sell it for any purpose, commercial included, with no license to buy. Keep the copyright notice.

Apache License 2.0 · Open source (permissive). OSI-approved license with few conditions beyond keeping the copyright notice.

Detected by GitHub as Apache-2.0.

GitHub activity

Stars
29k
Forks
1.5k
Commits, 12 mo
2.5k
last 2 days ago
Releases, 12 mo
16
last 23 days ago
Contributors
300
2 in last 16 commits
Open issues
58
1.4k closed

Snapshot from 2026-10-08 · Funding: open collective

Top contributors

Points for pull requests merged into Authelia and reviews of them since 10 October 2025. Building something another user asked for earns more. 69 people have points on Authelia in all.

  1. 12,403 points
  2. 21,961 points
  3. 3924 points
  4. 4611 points
  5. 540 points
  6. 640 points
  7. 730 points
  8. 830 points
  9. 922 points
  10. 1020 points
Bespoke · we set it up$1,200onceFlat Rate Deploy$15/mo