Userfront Alternatives & Competitors

Open Source User Authentication - An Alternative to Auth0 / Firebase Auth / AWS Cognito .

Key SuperTokens features:

Ease of Integration Open Source Feature-Rich Scalability

Open Source freemium

Free tools for startup founders. No signup. Runs 100% in your browser. Visualize your startup metrics.

Key LotofTools features:

Pricing Account Not Required Data Privacy Real-Time Calculations

free

Automated AI security testing for agents, chatbots, and APIs. Find prompt injection, data leaks, and unsafe behavior before launch.

Key PromptBrake features:

AI Security Testing Supported Targets CI Release Gates Self-Hosted Execution

Try for free paid Free Trial $499 / Monthly (Enterprise: 30 scans, 1 active runner license) Sponsored

Auth0 is a program for people to get authentication and authorization services for their own business use.

Key Auth0 features:

Ease of Use Security Scalability Customization

Open Source

FusionAuth is a CIAM platform that is 100% free for unlimited users.

Key FusionAuth features:

Comprehensive Feature Set Developer Friendly Self-Hosted and SaaS Options Scalable

Open Source freemium

We learnt from our dev community that the identity service has been such a time-consuming and complex task for them in the past, which is why we’ve simplified the experience.

Key Logto features:

Easy Integration Customizability Scalability Secure

Open Source

Open Source Identity and Access Management for modern Applications and Services.

Key Keycloak features:

Open-Source Feature-Rich Customizability Integration Capability

Open Source

Cloud-based directory services. Alternative to Microsoft Active Directory.

Key JumpCloud features:

Unified Directory Cross-Platform Support Zero Trust Security Ease of Integration

The Identity Infrastructure for Modern B2B SaaS.

Key ZITADEL features:

OpenID Connect OAuth SAML2.0 Passkeys

Open Source freemium $100 / Monthly (1'000 Daily Active Users included)

authentik is an open-source identity provider focused on flexibility and versatility.

Key authentik features:

Open Source Flexible Authentication Methods User Interface and Experience Docker Deployment

Open Source

Clerk is a complete suite of embeddable UIs, flexible APIs, and admin dashboards to authenticate and manage your users.

Key Clerk Authentication features:

Multifactor Authentication Advanced security Session Management Email and SMS one-time passcodes

Open Source

Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.

Key Amazon Cognito features:

Scalability Security Integrations Federated Identities

Kinde provides Authentication tools and infrastructure to helps SaaS businesses accelerate their product development. Every day, Kinde gives the best teams in the world, everything they need to build, secure, monetize, and manage a more modern web.

Key Kinde features:

Passwordless Social SSO Enterprise SSO Multi-factor authentication

freemium $25 / Monthly (Professional plan starting from 10,500 monthly active users)

Fullstack Authorization as a Service for cloud native applications.

Key Permit.io features:

Comprehensive Permission Management Ease of Integration Scalability User-Friendly Interface

Open Source