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swap_horiz Keycloak Alternatives

Looking for alternatives to Keycloak? Compare the top Stack options ranked by our AI scoring system.

You're looking at alternatives to:
Keycloak

Keycloak

Keycloak is an open-source identity and access management (IAM) software solution maintained by Red Hat. It provides developers and system administrators with tools to secure applications and services without building authentication mechanisms from scratch. The platform supports standard protocols s...

7.54 Good

apps Top Keycloak Alternatives

The top alternative to Keycloak in 2026 is FastAPI Stack with a score of 8.80/10, followed by Terraform (8.56) and PETAL Stack (8.55).

1
FastAPI Stack

FastAPI Stack

FastAPI is an open source Python framework created by Sebastián Ramírez for building web APIs. Released in 2018, it is b...

API Async Python Web
8.80 Great
2
Terraform

Terraform

Terraform is a cloud infrastructure automation tool. It allows users to define and manage computing resources across mul...

Cloud Multi Cloud DEVOPS Infrastructure As Code
8.56 Great
3
PETAL Stack

PETAL Stack

The PETAL stack is a web-development combination built around Phoenix, Elixir, Tailwind CSS, Alpine.js, and LiveView. Ph...

Web Elixir Tailwind Phoenix
8.55 Great
4
Flask Stack

Flask Stack

Flask is a lightweight Python web framework created by Armin Ronacher and first released in 2010. Built around the Werkz...

Python Minimal Web Microframework
8.55 Great
5
Kubernetes

Kubernetes

For teams running containerized applications, Kubernetes provides an open source system for coordinating workloads acros...

Open Source Cloud Native Container Orchestration DEVOPS
8.46 Great
6
Django REST Framework Stack

Django REST Framework Stack

Django REST Framework is an open-source toolkit for building Web APIs with the Python-based Django framework. Created by...

API Rest Python Web
8.35 Great
7
Keycloak Stack

Keycloak Stack

Keycloak is an open-source identity and access-management system sponsored by Red Hat and designed for applications and...

Enterprise Open Source Sso Auth
8.20 Great
8
Auth0 Stack

Auth0 Stack

Auth0 is a cloud-based identity and access management platform founded in 2013 by Eugenio Pace and Matias Woloski and ac...

SAAS Auth Identity Oauth
8.00 Great
9
Auth0

Auth0

Auth0 is a cloud-based identity and access management platform founded in 2013 by Eugenio Pace and Matias Woloski. The s...

Enterprise SAAS Auth Identity
7.91 Good
10
Clerk

Clerk

Clerk is a software-as-a-service platform designed to handle user authentication and identity management for web applica...

SAAS React Auth Identity
7.64 Good
11
Plausible Analytics

Plausible Analytics

Plausible Analytics is an open-source web analytics platform designed to track website traffic without utilizing cookies...

Privacy Analytics Open Source Self Hosted
7.54 Good
12
Meilisearch

Meilisearch

Meilisearch is an open-source search engine designed to provide fast, typo-tolerant full-text search for websites, appli...

Fast Open Source Self Hosted Rust
7.45 Good
13
NextAuth.js

NextAuth.js

NextAuth.js is an open-source authentication library designed specifically for use with Next.js applications. Created in...

Open Source Typescript Auth Nextjs
7.36 Good
14
PocketBase

PocketBase

PocketBase is an open-source backend solution written in Go that provides a real-time database, authentication, and file...

Open Source Self Hosted Sqlite Go
7.18 Good
15
Typesense

Typesense

Typesense is an open-source search engine designed for fast, typo-tolerant text search across websites and applications....

Cloud Fast Open Source Self Hosted
7.18 Good
16
Umami Analytics

Umami Analytics

Umami Analytics is an open-source web analytics platform designed as a privacy-focused alternative to Google Analytics....

Lightweight Privacy Analytics Open Source
7.18 Good
17
Appwrite

Appwrite

Appwrite is an open-source backend-as-a-service platform initially created by Eldad Fux. It provides developers with a s...

Mobile Open Source Self Hosted Baas
6.90 Fair
18
Lucia (Auth)

Lucia (Auth)

Lucia is an open-source authentication library and toolkit for TypeScript web applications. It focuses on session-based...

Open Source Self Hosted Typescript Auth
6.44 Fair
19
Better Auth

Better Auth

Better Auth is an open-source authentication framework for TypeScript applications. It provides reusable server and clie...

Modern Open Source Typescript Auth
6.26 Fair
20
Soketi

Soketi

Soketi is an open-source WebSocket server that implements the Pusher-compatible protocol used by many real-time web appl...

Open Source Self Hosted Realtime Websockets
5.98 Mediocre

summarize Quick Comparison Summary

Alternative Score vs Keycloak Action
FastAPI Stack
FastAPI Stack
Stack API Async Python
8.80 Great +1.26 Compare
Terraform
Terraform
Stack Cloud Multi Cloud DEVOPS
8.56 Great +1.02 Compare
PETAL Stack
PETAL Stack
Stack Web Elixir Tailwind
8.55 Great +1.01 Compare
Flask Stack
Flask Stack
Stack Python Minimal Web
8.55 Great +1.01 Compare
Kubernetes
Kubernetes
Stack Open Source Cloud Native Container Orchestration
8.46 Great +0.92 Compare
Django REST Framework Stack
Django REST Framework Stack
Stack API Rest Python
8.35 Great +0.81 Compare
Keycloak Stack
Keycloak Stack
Stack Enterprise Open Source Sso
8.20 Great +0.66 Compare
Auth0 Stack
Auth0 Stack
Stack SAAS Auth Identity
8.00 Great +0.46 Compare
Auth0
Auth0
Stack Enterprise SAAS Auth
7.91 Good +0.37 Compare
Clerk
Clerk
Stack SAAS React Auth
7.64 Good +0.10 Compare

See all Stack ranked by score

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help Frequently Asked Questions

What are the best alternatives to Keycloak?
The top alternatives to Keycloak in 2026 include FastAPI Stack, Terraform, PETAL Stack, Flask Stack, Kubernetes. Each offers unique features and is objectively scored on Lunoo to help you compare.
How does Keycloak compare to its competitors?
Our AI-powered comparison system analyzes features, pricing, user reviews, and expert opinions to provide objective scores. Keycloak scores 7.54/10. Click any alternative above to see a detailed side-by-side comparison.
Is Keycloak worth it in 2026?
Keycloak scores 7.54/10 in the Stack category. We recommend comparing it with the 20 alternatives listed above to find the best fit for your needs.
What is the best free alternative to Keycloak?
Several alternatives to Keycloak offer free plans or free tiers. Check the alternatives listed above and visit their websites to compare pricing and free options.
Why should I switch from Keycloak?
Common reasons users look for Keycloak alternatives include pricing, specific feature gaps, better integration needs, or simply exploring newer options. Our objective scoring helps you compare without bias.
How many alternatives to Keycloak are there?
Lunoo currently lists 20 scored alternatives to Keycloak in the Stack category, ranked by our AI-powered evaluation system.
Which Keycloak alternative has the highest rating?
FastAPI Stack currently holds the highest rating among Keycloak alternatives with a score of 8.80/10.
Can I use FastAPI Stack instead of Keycloak?
FastAPI Stack is one of the top-rated alternatives to Keycloak. While they serve similar purposes in the Stack space, each has distinct strengths. Use our comparison tool above for a detailed side-by-side analysis.
What is the cheapest alternative to Keycloak?
Pricing varies among Keycloak alternatives. We recommend checking each alternative's website for current pricing. Many options in the Stack category offer free tiers or competitive pricing.
How are Keycloak alternatives ranked on Lunoo?
Lunoo uses an AI-powered scoring system that analyzes category fit, feature coverage, pricing signals, public reception, recency, and value to provide 0 to 10 scores. Rankings are updated continuously.
Keycloak vs FastAPI Stack: which is better?
Keycloak scores 7.54/10 while FastAPI Stack scores 8.80/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.
Keycloak vs Terraform: which is better?
Keycloak scores 7.54/10 while Terraform scores 8.56/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.
Keycloak vs PETAL Stack: which is better?
Keycloak scores 7.54/10 while PETAL Stack scores 8.55/10 on Lunoo. The best choice depends on your specific needs. Use our detailed comparison tool for a full breakdown.

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