
Auth0
Clerk
Keycloak
PropelAuth
Hanko
AuthKit
ZITADEL
Open-source Auth0/Clerk Alternative
Keycloak
authentik
ZITADEL
Authelia
Hanko
AWS Identity and Access Management
Auth0
Single Sign-On for Your Self-Hosted Universe 🐈⬛🔒

Which is more popular?
Based on our record, Stack Auth seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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VA
VoidAuth
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| Website | stack-auth.com | voidauth.app |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.

No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.

No analysis of Stack Auth yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
W18D3 C3: Full Stack Auth Review: User/Computer Order & Developer Build Order
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Stack Auth and VoidAuth. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Five minutes. That's how long Stack Auth takes to set up. - Source: dev.to / 11 months ago
Stack Auth (S24) | San Francisco, CA | Full-time Hiring founding & design engineers! We're building the customer platform for developers — think of a single service that does auth, payments, analytics, marketing emails, and so much more.... - Source: Hacker News / about 1 year ago
StackAuth is an open-source authentication and user management platform designed to integrate seamlessly into Next.js projects. Its combination of frontend/backend APIs and pre-built UI components dramatically simplifies the integration... - Source: dev.to / almost 2 years ago
Tracking VoidAuth since Jan 2026.
When comparing Stack Auth and VoidAuth, you can also consider the following products.

Auth0 is a program for people to get authentication and authorization services for their own business use.
Compare Auth0 to Stack Auth or VoidAuth:

Open Source Identity and Access Management for modern Applications and Services.
Compare Keycloak to Stack Auth or VoidAuth:

Clerk.io, the artificial intelligence for e-commerce that knows your customers interests.
Compare Clerk to Stack Auth or VoidAuth:

authentik is an open-source identity provider focused on flexibility and versatility.
Compare authentik to Stack Auth or VoidAuth:


PropelAuth hosts and manages your authentication.
Compare PropelAuth to Stack Auth or VoidAuth: