
Auth0
Keycloak
Clerk
AuthKit
Hanko
PropelAuth
ZITADEL
Open-source Auth0/Clerk Alternative

Keycloak
authentik
Phase Two
Auth0
ZITADEL
VoidAuth
Authelia
The simplest way to protect your apps with a login screen.

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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| Website | stack-auth.com | tinyauth.app |
| Pricing | — | |
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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
Tinyauth is Simple, Lightweight, and Perfect for the Homelab
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Stack Auth and Tinyauth. 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 / 10 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 Tinyauth since Jun 2025.
When comparing Stack Auth and Tinyauth, 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 Tinyauth:

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

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

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

Fully managed, multi-region, high-availability, Keycloak deployments with top extensions to run for any enterprise. 99.95% uptime SLA. 24/7 support. Built by top Keycloak experts and contributors.
Compare Phase Two to Stack Auth or Tinyauth:

The world's best login box, powered by WorkOS + Radix.
Compare AuthKit to Stack Auth or Tinyauth: