About VoidAuth
VoidAuth is an open-source SSO authentication and user management provider that sits in front of self-hosted applications. It is meant to be easy for administrators and end users, adding features such as passkeys, user invitations, self-registration, and email support. It runs in Docker and is released under the AGPL-3.0 license.
It acts as an OpenID Connect provider, supports proxy ForwardAuth for protecting apps behind a reverse proxy, and offers an LDAP directory server. Administrators manage users and groups from an admin panel, invite users or allow self-registration, and customize the logo, title, theme color, and email templates. Security options include multi-factor authentication, passkey-only accounts, and password resets verified by email.
Data is stored in Postgres or SQLite with encryption at rest. VoidAuth suits homelab users and small teams who run several services and want one login across them, as a lighter alternative to larger identity platforms.
Key features
- OpenID Connect provider
- Proxy ForwardAuth for reverse proxies
- LDAP directory server
- User and group management with invitations
- Multi-factor authentication and passkeys
- Customizable branding and email templates
- Encryption at rest with Postgres or SQLite
Good fit for
- →One login for a homelab full of apps
- →Protecting services behind a reverse proxy
- Tags
- sso
- oidc
- authentication
- ldap
- passkeys
- self-hosted
- forwardauth
- identity
VoidAuth: questions and answers
- What is VoidAuth used for?
- VoidAuth is a self-hostable single sign-on and user management provider with OIDC, proxy ForwardAuth, LDAP, passkeys, invitations, and an admin panel. It is a good fit for one login for a homelab full of apps and protecting services behind a reverse proxy.
- Is VoidAuth open source?
- Yes. VoidAuth is open source under the AGPL-3.0 licence. Its source code is on GitHub at voidauth/voidauth and is written mainly in TypeScript.
- Is VoidAuth free?
- Yes. VoidAuth is open source, so the software itself is free to use.
- Can I self-host VoidAuth?
- Yes. VoidAuth can be self-hosted on your own server or infrastructure; there is no official hosted version.
- What is VoidAuth an alternative to?
- VoidAuth is an open-source alternative to Auth0, OneLogin and JumpCloud. Other open-source alternatives to Auth0 include Authentik, Keycloak and Casdoor.
- Is VoidAuth actively maintained?
- Yes. The most recent commit to VoidAuth was on 2 October 2026, and the latest release is v1.16.0, published on 26 September 2026. The project has 2.9k stars on GitHub.
Open-source alternatives to VoidAuth
See all
Authentik
Auth & Identity
The authentication glue you need.
OSSvs Auth0★ 26k
Keycloak
Auth & Identity
Open Source Identity and Access Management For Modern Applications and Services
Apache-2.0vs Auth0★ 37k
Authelia
Auth & Identity
The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cr
Apache-2.0vs OneLogin★ 29k
Casdoor
Auth & Identity
An open-source Agent-first Identity and Access Management (IAM) /LLM MCP & agent gateway a
Apache-2.0vs Auth0★ 15kRauthy
Auth & Identity
Single Sign-On Identity & Access Management via OpenID Connect, OAuth 2, PAM
Apache-2.0vs Auth0★ 1.4k
WSO2 Identity Server
Auth & Identity
Welcome to the WSO2 Identity Server source code! For info on working with the WSO2 Identit
Apache-2.0vs Auth0★ 881
SaaS alternatives to VoidAuth
See all
Auth0
Auth & Identity
Auth0 is an authentication and authorization platform that lets developers add login, single sign-on and access control to apps with SDKs and quickstarts.
SaaS
OneLogin
Auth & Identity
Cloud single sign-on and MFA for workforce identity, from One Identity
SaaS
JumpCloud
Auth & Identity
Cloud directory for identity, device management and SSO
SaaS
Microsoft Entra ID
Auth & Identity
Microsoft cloud identity service for SSO, MFA and conditional access, formerly Azure AD
SaaS
Ping Identity
Auth & Identity
Enterprise workforce and customer identity management with SSO and MFA
SaaS
Duo Security
Auth & Identity
Cisco's multi-factor authentication and device trust service for workforces
SaaS

