Assembly Line

Google Cloud Identity

這個平台整合了身分識別資訊、存取權限、應用程式和端點管理 (IAM/EMM) 的功能。

Google Cloud Identity is commercial identity and access software made by Google. Google was founded in 2008.

Made by
Google
Maker founded
2008
Source code
Closed

Website Google on Wikipedia

Judgement

What it is
Complete system
What it does
Google's identity and device management service, the same directory behind Google Workspace, offering SSO, MFA and endpoint management.
Adopt it when
A Google Workspace or Google Cloud organisation wants to manage users and SSO without a separate identity vendor.
Watch out
Third-party app provisioning and policy depth are behind Okta and Entra.
Ready for
Production-ready
Runs as
Cloud service
Built with
Google Cloud
What the license allows
Closed source: you use it under the maker's terms and cannot change or resell the code.

Judged on 2026-11-03 from the maker's description and Wikipedia. The license and age lines are worked out directly.

Open-source alternatives to Google Cloud Identity

  1. 1
    Keycloak keycloak

    Open Source Identity and Access Management For Modern Applications and Services

    Building block Production-ready You need self-hosted SSO across many applications with enterprise protocols and no licence fees.

    ★ 38k Apache-2.0 Java Active, pushed today
  2. 2
    Better Auth better-auth

    The most comprehensive authentication framework

    Building block Production-ready You are building a TypeScript web app and want auth in your own codebase and database instead of a hosted service.

    ★ 31k MIT TypeScript Active, pushed yesterday
  3. 3
    Authelia authelia

    The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready.

    Complete system Production-ready You self-host several web apps behind Nginx, Traefik or Caddy and want one login with MFA in front of them.

    ★ 29k Apache-2.0 Go Active, pushed today
  4. 4
    Devise heartcombo

    Flexible authentication solution for Rails with Warden.

    Building block Production-ready You are building a Rails app with conventional email and password accounts.

    ★ 24k MIT Ruby Active, pushed 27 days ago
  5. 5
    Casbin apache

    Apache Casbin: an authorization library that supports access control models like ACL, RBAC, ABAC.

    Building block Production-ready Your application needs configurable permission rules without writing an authorisation engine.

    ★ 20k Apache-2.0 Go Active, pushed today
  6. 6
    openGym DuarteSantos8

    Open-source gym & body-weight tracker, now in the App Store (iPhone + Apple Watch) and as an Android APK. Plan routines, log workouts, see which muscles are trained, import from Strong/Hevy/FitNotes. Self-host it or use it on the phone alone.

    Complete system Experimental You want a free workout log you can self-host or keep on your phone, without a subscription app.

    ★ 19k AGPL-3.0 JavaScript Active, pushed today
  7. 7
    ZITADEL zitadel

    ZITADEL - Identity infrastructure, simplified for you.

    Building block Production-ready You build a B2B SaaS that needs per-customer organisations and SSO without assembling it yourself.

    ★ 16k AGPL-3.0 Go Active, pushed today
  8. 8
    Logto logto-io

    🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.

    Building block Production-ready You want an Auth0-like service with ready sign-in screens that you can self-host or use as cloud.

    ★ 15k MPL-2.0 TypeScript Active, pushed today
  9. 9
    Casdoor casdoor

    An open-source Agent-first Identity and Access Management (IAM) /LLM MCP & agent gateway and auth server with web UI supporting OpenClaw, MCP, OAuth, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, Face ID, Google Workspace, Azure AD

    Complete system Production-ready You want a self-hosted SSO and user management server that is simpler to run than Keycloak.

    ★ 15k Apache-2.0 Go Active, pushed today
  10. 10
    OPA open-policy-agent

    Open Policy Agent (OPA) is an open source, general-purpose policy engine.

    Building block Production-ready You want one policy language across Kubernetes, CI, APIs and infrastructure, with policies kept outside application code.

    ★ 12k Apache-2.0 Go Active, pushed today

Other commercial identity providers and single sign-on servers

  1. 1
    Microsoft Entra ID Microsoft

    Strengthen identity security with Microsoft Entra ID, a cloud identity and access (IAM) solution that prevents identity attacks and supports SSO and Zero Trust.

    Complete system Production-ready Your organisation uses Microsoft 365 and wants identity and SSO without another vendor.

    508 readers a month Since 2008 Commercial
  2. 2
    Ping Identity Ping Identity

    Ping Identity helps you protect your users and every digital interaction they have while making experiences frictionless.

    Complete system Production-ready A large enterprise or bank has complex hybrid identity needs, including on-premise federation.

    498 readers a month Since 2002 Commercial
  3. 3
    JumpCloud JumpCloud

    JumpCloud makes it simple to manage Windows, Apple, Linux, and Android devices and to deliver secure access with SSO, MFA, Zero Trust, RADIUS, and more.

    Complete system Production-ready A small or midsize company without Active Directory wants one place for users, devices and access.

    179 readers a month Commercial
  4. 4
    Okta Workforce Identity Okta, Inc.

    Okta Workforce Identity makes access for employees, contractors, and partners simple and secure. Discover how to reduce risk with Okta's scalable solution.

    Complete system Production-ready A company with many SaaS apps wants vendor-neutral SSO and automated onboarding and offboarding.

    Commercial
  5. 5
    Auth0 Okta, Inc.

    Secure users, AI agents, and more with Auth0, a production-ready authentication and authorization platform built to help you ship faster and drive sign-ups.

    Building block Production-ready A product team wants a complete login system for its customers with enterprise SSO and does not want to build auth.

    Commercial
  6. 6
    AWS IAM Identity Center Amazon Web Services

    IAM Identity Center helps you securely create, or connect, your workforce identities and manage their access centrally across AWS accounts and applications.

    Complete system Production-ready You run several AWS accounts and want engineers to sign in once with roles assigned centrally.

    Commercial
  7. 7
    Amazon Cognito Amazon Web Services

    Implement customer identity and access management (CIAM) that scales to millions of users with Amazon Cognito, fully managed authentication service.

    Building block Production-ready An application already on AWS needs cheap customer sign-in at scale.

    Commercial
  8. 8
    OneLogin One Identity

    Cloud-based management provider

    Complete system Production-ready A midsize company wants cheaper workforce SSO than Okta and the integrations it needs are supported.

    126 readers a month Since 2009 Commercial
  9. 9
    Firebase Authentication Google

    Descubre Firebase, la plataforma de Google para el desarrollo de apps web y para dispositivos móviles que ayuda a los desarrolladores a compilar apps y juegos que les fascinarán a los usuarios.

    Building block Production-ready A mobile or web app built on Firebase needs simple sign-in quickly.

    Commercial
  10. 10
    Clerk Clerk

    The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.

    Building block Production-ready A React or Next.js team wants polished sign-in and user management working in an afternoon.

    Commercial

Under it

Every program, Google Cloud Identity included, runs on a microchip.

How compilers were built, back to punched paper tape

The description is the maker's own, quoted as written. Facts come from Wikipedia's article on Google and refresh weekly.