Compare tools side by side · TechInTrends

Open-source auth infrastructure for SaaS and AI apps with OIDC, multi-tenancy and prebuilt sign-in UI.

CNCF open-source identity and access management server with SSO, OIDC, SAML and user federation.

Hosted auth and user management with drop-in UI components, popular in the Next.js ecosystem.

Self-hosted identity provider with flows, SSO (OIDC/SAML/LDAP) and an app proxy; homelab and enterprise favorite.

Head to head

Metric	Logto	Keycloak	Clerk	authentik
Stars	14.8k	37.7k	n/a	26.3k
Weekly downloads	n/a	n/a	3.6M	n/a
Download growth	n/a	n/a	+49%	n/a
Popularity score	76/100	84/100	80/100	81/100
Forks	1.2k	9.1k	n/a	2.1k
Open issues	142	3.4k	n/a	911
Last commit	1w ago	1w ago	n/a	3d ago
Latest version	n/a	n/a	7.9.25	n/a
License	MPL-2.0	Apache-2.0	n/a	n/a
First released	2021	2013	n/a	2019
Signals	Rising	Popular	None	Trending
Listed in	Security & Identity › Identity providers & SSO	Backend › Authentication Libraries Security & Identity › Identity providers & SSO	Backend › Authentication Libraries Security & Identity › Identity providers & SSO	Security & Identity › Identity providers & SSO

Weekly downloads over time

Hover for exact values; switch to log scale for tools of very different sizes. Not shown (no comparable download data): Logto, Keycloak, authentik.