[opensourcedex]

best-of ranking · updated nightly

Best Open Source Identity & Access Management (IAM) Tools

Ranked by GitHub stars — actual adoption, not editorial taste. All 10 are free, open source and self-hostable; license and last activity on every entry.

  1. 1
    Keycloak ★ 38K

    Secure authentication and access control made simple

    Apache-2.0 Java pushed 2026-11-02 details →
  2. 2
    JumpServer ★ 32K

    Secure access management for modern IT infrastructure

    GPL-3.0 Python pushed 2026-11-02 details →
  3. 3
    Better Auth ★ 31K

    Framework-agnostic authentication for TypeScript applications

    MIT TypeScript pushed 2026-11-01 details →
  4. 4
    authelia ★ 29K

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

    Apache-2.0 Go pushed 2026-11-02 details →
  5. 5
    Authentik ★ 26K

    Take control of your identity with a secure, flexible solution

    NOASSERTION Python pushed 2026-11-02 details →
  6. 6
    casbin ★ 20K

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

    Apache-2.0 Go pushed 2026-11-02 details →
  7. 7
    Sa-Token ★ 19K

    ✨ 开源、免费、一站式 Java 权限认证框架，让鉴权变得简单、优雅！—— 登录认证、权限认证、分布式 Session 会话、微服务网关鉴权、SSO 单点登录、OAuth2.0 统一认证、jwt 集成、API Key 秘钥授权、API 参数签名

    Apache-2.0 Java pushed 2026-10-16 details →
  8. 8
    openGym ★ 19K

    Self-hosted gym & body-weight tracker — plan routines, log workouts (supersets, warm-ups, cardio), see which muscles are trained, fatigued or detrained, import

    AGPL-3.0 JavaScript pushed 2026-11-02 details →
  9. 9
    hydra ★ 18K

    Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user ca

    Apache-2.0 Go pushed 2026-07-29 details →
  10. 10
    Zitadel ★ 15K

    Secure, customizable identity infrastructure for developers

    AGPL-3.0 Go pushed 2026-11-02 details →
method stars desc · snapshot from github api refresh nightly related Network Security, Data Security & Privacy, Threat Detection & Response, Secrets Management, Application Security, Fraud Prevention

Related best-of lists

best Network Security →best Data Security & Privacy →best Threat Detection & Response →best Secrets Management →best Application Security →best Fraud Prevention →

last updated nightly · ranking method: github stars, live-tracked

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Frequently asked questions

What is the best open source Identity & Access Management (IAM) tool in 2026?

Keycloak leads the ranking with 37,657 GitHub stars, ahead of JumpServer. Rankings use live GitHub star counts, refreshed nightly.

How is this list of Identity & Access Management (IAM) tools ranked?

By GitHub stars — a proxy for adoption and community size. Each entry also shows its licence, primary language and last commit date, so you can judge maintenance activity rather than trusting the ranking alone.

Are the best Identity & Access Management (IAM) tools free?

Every project on this list is open source and free to self-host. Some also offer paid managed hosting, but the software itself carries no licence fee.