Security & Compliance
Identity & Access Management
Authentication, authorization, SSO, identity, and access management tools.
Open-Source Rankings
Ordered by GitHub stars first, then ToolVitals score to break ties between similarly adopted projects.
| # | Tool | Health | Shipping | Stars | Score | Status |
|---|---|---|---|---|---|---|
| 01 | Zitadel ZITADEL - Identity infrastructure, simplified for you. | 100 | 100 | 13.6k | 100 | Active |
| 02 | Ory Kratos Headless cloud-native authentication and identity management written in Go. Scales to a billion+ users. Replace Homegrown, Auth0, Okta, Firebase with better UX and DX. Passkeys, Social Sign In, OIDC, Magic Link, Multi-Factor Auth, SMS, SAML, TOTP, and more. Runs everywhere, runs best on Ory Network. | 82 | 47 | 13.6k | 66 | Warning |
| 03 | Stack Auth Open-source Auth0/Clerk alternative | 92 | 100 | 6.8k | 96 | Active |
| 04 | Authula An open-source authentication solution that scales with you. Embed it as a library in your Go app, or run it as a standalone auth server with any tech stack. | 48 | 0 | 187 | 26 | Critical |
Commercial Rankings
Kept separate so commercial tools are ranked on ToolVitals public-product signals without GitHub-star bias.
| # | Tool | Health | Shipping | Score | Status |
|---|---|---|---|---|---|
| 01 | 1Password Password manager for teams and families | 81 | 66 | 80 | Active |