Keycloak
96 · HealthyIdentity and access management server with SSO, OIDC, SAML and user federation (CNCF).
Open source Auth & identity
authentik
91 · HealthyIdentity provider with flows, SSO across OIDC, SAML, LDAP and a proxy outpost.
Logto
86 · HealthyAuth and identity service for SaaS and AI apps, built on OIDC with organizations and RBAC.
ZITADEL
84 · HealthyMulti-tenant identity platform with event-sourced audit trail and B2B organizations.
Hanko
84 · HealthyAuthentication server with passkeys, passwords, social login and drop-in web components.
Better Auth
83 · HealthyTypeScript authentication framework with email and social login, passkeys, two-factor, organizations and SSO plugins.
Ory Kratos
78 · StableHeadless identity and user-management server with an API-first design.
Pocket ID
78 · StableLightweight OpenID Connect provider that signs users in to your apps with passkeys only.
SuperTokens
74 · StableAuthentication backend with prebuilt UI, sessions and multi-tenancy.
Authelia
71 · StableSingle sign-on and two-factor portal that sits in front of web apps via a reverse proxy.
Logto
Auth and identity service for SaaS and AI apps, built on OIDC with organizations and RBAC.
Alternative to
Will it still be around?
Healthy
Score 86/100
Can a business use it freely?
Free core, paid extras
MPL-2.0 · open source (copyleft)
Features compared
has,doesn't1 feature3 features
11/12 Auth0 features free in Logto
✕ doesn't have it · ◐ partly · $ higher plan or paid editionBoth have 8
Headline Auth0 features on the B2C Essentials plan, and whether Logto has each in its free, self-hosted edition.
| Feature | Auth0B2C Essentials plan | Logto11 of 12 free |
|---|---|---|
| Auth0 has, Logto doesn't1 | ||
| User management console | Included | PartlyNo console MFA or team invites |
| Logto has, Auth0 doesn't3 | ||
| Enterprise SSO for your customers | Higher planSAML and OIDC connections, Professional | YesIdP-initiated SSO is Cloud only |
| Machine-to-machine tokens | Higher planAdd-on | Yes |
| Audit logs | Limited5 days of logs | Yes |
| Both have8 | ||
| Hosted login pages | IncludedUniversal Login | Yes |
| Social login | Included | Yes |
| Multi-factor authentication | Included | Yes |
| Passkeys and passwordless | Included | Yes |
| Organizations (B2B tenants) | Included10 organizations | Yes |
| Roles and permissions | Included | Yes |
| Custom code in login flows | IncludedActions | YesCustom JWT claims and webhooks |
| OAuth 2.0 and OIDC provider | Included | YesOIDC; SAML apps limited to 3 |
Sources
- Auth0, checked 2026-10-09: auth0.com
- Logto, checked 2026-10-09: docs.logto.io, docs.logto.io
Flat Rate Deploy
At 500 monthly active users, Auth0 B2C Essentials costs about $35 a month. Logto on OpenTools costs $15 a month, setup included, so you save $20 a month, about $720 over three years.
Monthly cost
- Logto on OpenTools
- $15
- Auth0
$35
You save each month
$20/mo
57% less than today
Saving from month one
You save
- Over 3 years
- $720
- In year one
- $240
List price checked 8 Oct 2026 · Source · Disclaimer
Health score: 86/100
Healthy · activity, bus factor and issue responsiveness, from GitHub
Score v2 · How it works
Activity
45% weight100/100
- Last commit yesterday (100/100).
- 1321 commits in the past 12 months (100/100).
- 14 releases in the past 12 months (100/100).
Bus factor
30% weight63/100
- Top contributor wrote 53% of the last 98 commits (past 12 months).
- 15 people authored those commits.
Responsiveness
25% weight89/100
- 86% of all issues are closed (126 open, 762 closed) (93/100).
- 26 of 30 recent issues got a reply or were closed (87/100).
License
Free core, paid extras
MPL-2.0 · Open source (copyleft)
What you need to do
The core is free to use. Enterprise features, kept in a separately licensed part of the code, need a paid license in production.
For Logto
The code is MPL-2.0. A self-hosted install without a paid key can’t hide Logto branding, use a custom sign-in UI, IdP-initiated SSO, more than one Console admin or mandatory MFA, and is capped at three SAML apps.
MPL-2.0 (self-hosted features unlocked by a paid license key) · Open source (copyleft). OSI-approved license that requires sharing changes under the same license when you distribute (AGPL: also when you offer it over a network).
License text checked 2026-10-09 · Read it
GitHub activity
- Stars
- 15k
- Forks
- 1.2k
- Commits, 12 mo
- 1.3k
- last yesterday
- Releases, 12 mo
- 14
- last 10 days ago
- Contributors
- 118
- 15 in last 98 commits
- Open issues
- 126
- 762 closed
Snapshot from 2026-10-08 · Funding: github
Top contributors
Points for pull requests merged into Logto and reviews of them since 10 October 2025. Building something another user asked for earns more. 47 people have points on Logto in all.
