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OpenSourceAlternatives

Tag

oauth2

5 catalogue entries use this topic; each Project's license policy is labeled separately.

Keycloak

KeycloakOpen

Open-source identity and access management with single sign-on

Stars37.3K
Commitjust now
LicenseApache-2.0

Keycloak is open-source identity and access management software that adds login, single sign-on, and access control to apps and services on your own infrastructure.

Alternative toAuthentik
SuperTokens

SuperTokensOpen

Open-source user authentication with self-hosting and managed cloud

Stars15.3K
Commitjust now
LicenseApache-2.0

SuperTokens is open-source user authentication with session management, passwordless and social login, and SSO, available self-hosted or as a managed service.

Alternative toAuth0
Zitadel

ZitadelOpen

Open-source identity infrastructure with login and single sign-on

Stars15.3K
Commitjust now
LicenseAGPL-3.0

Zitadel is open-source identity infrastructure that adds login, single sign-on, and multi-factor authentication to applications, with multi-tenant organization management, available self-hosted or as a managed cloud.

Alternative toKeycloak
Ory

OryOpen

Open-source identity platform for login, SSO, and permissions

Stars13.9K
Commit1mo ago
LicenseApache-2.0

Ory is an open-source identity platform built around the Kratos server, offering passkeys, social sign-in, and single sign-on self-hosted or as the managed Ory Network.

ACI.dev

ACI.devAIOpen

Open-source platform connecting AI agents to 600+ tools via MCP

Stars4,906
Commit3mo ago
LicenseApache-2.0

ACI.dev is an open-source tool-calling platform that connects AI agents to 600+ applications through direct function calls or a unified MCP server.

Alternative ton8n