8 Best Social Authentication APIs Without Firebase in 2026

Firebase Authentication has long been a go-to solution for developers implementing social login features. However, many developers are seeking social authentication without Firebase due to vendor lock-in concerns, pricing considerations, or specific feature requirements that Firebase doesn't meet.

Whether you're building a new application or migrating from Firebase, this comprehensive guide explores the top alternatives that provide robust social authentication capabilities without the Firebase dependency.

Why Consider Alternatives to Firebase Auth?

Before diving into the alternatives, let's understand why developers are looking for social authentication without Firebase:

• Vendor Lock-in: Firebase ties you to Google's ecosystem, making migration challenging
• Pricing Concerns: Firebase's pricing can become expensive as your user base grows
• Limited Customization: Firebase Auth offers limited customization options for authentication flows
• Data Location: Some organizations require specific data residency that Firebase can't accommodate
• Feature Gaps: Missing advanced features like passwordless authentication or custom identity providers

Top 8 Firebase Alternatives for Social Authentication

1. Auth0

Auth0 stands out as the most comprehensive alternative for social authentication without Firebase. It supports over 30 social identity providers and offers extensive customization options.

Key Features:

• 30+ social providers (Google, Facebook, Twitter, LinkedIn, GitHub, etc.)
• Universal Login with customizable UI
• Multi-factor authentication
• Advanced security features (anomaly detection, breached password detection)
• Extensive SDKs and APIs

Pricing: Free tier includes 25,000 monthly active users, paid plans start at $35/month

Code Example:

import { Auth0Provider } from '@auth0/auth0-react';

function App() {
  return (
    <Auth0Provider
      domain="your-domain.auth0.com"
      clientId="your-client-id"
      redirectUri={window.location.origin}
    >
      <MyApp />
    </Auth0Provider>
  );
}

Best For: Enterprise applications requiring extensive customization and compliance features.

2. Supabase Auth

Supabase offers an open-source alternative that provides social authentication without Firebase while maintaining similar ease of use.

Key Features:

• Open-source with self-hosting options
• Built-in social providers (Google, GitHub, Discord, Twitter, etc.)
• Row-level security policies
• Real-time subscriptions
• PostgreSQL database integration

Pricing: Free tier includes 50,000 monthly active users, Pro plan at $25/month

Code Example:

import { createClient } from '@supabase/supabase-js'

const supabase = createClient(supabaseUrl, supabaseKey)

// Social login
const { data, error } = await supabase.auth.signInWithOAuth({
  provider: 'google',
  options: {
    redirectTo: 'http://localhost:3000/auth/callback'
  }
})

Best For: Developers who prefer open-source solutions and want database integration.

3. AWS Cognito

Amazon Cognito provides enterprise-grade social authentication without Firebase with deep AWS integration.

Key Features:

• Seamless AWS service integration
• Identity pools and user pools
• Social and enterprise identity providers
• Advanced security features
• Global availability and scalability

Pricing: Pay-per-use model; new user pools include 10,000 monthly active users free (Lite and Essentials tiers). The previous 50,000 MAU free tier ended in December 2024.

Code Example:

import { Amplify, Auth } from 'aws-amplify';

Amplify.configure({
  Auth: {
    region: 'us-east-1',
    userPoolId: 'us-east-1_xxxxxxxxx',
    userPoolWebClientId: 'xxxxxxxxxxxxxxxxxxxxxxxxxx',
    oauth: {
      domain: 'your-domain.auth.us-east-1.amazoncognito.com',
      scope: ['email', 'openid', 'profile'],
      redirectSignIn: 'http://localhost:3000/',
      redirectSignOut: 'http://localhost:3000/',
      responseType: 'code'
    }
  }
});

// Social login
Auth.federatedSignIn({ provider: 'Google' });

Best For: Applications already using AWS infrastructure or requiring enterprise-level scalability.

4. Clerk

Clerk offers a modern approach to social authentication without Firebase with exceptional developer experience and pre-built UI components.

Key Features:

• Pre-built authentication UI components
• Social providers (Google, Facebook, Twitter, GitHub, etc.)
• Session management and user profiles
• Multi-factor authentication
• Webhooks and real-time events

Pricing: Free tier includes 50,000 monthly active users (billed as monthly retained users), Pro plan at $25/month

Code Example:

import { ClerkProvider, SignIn, SignedIn, SignedOut } from "@clerk/nextjs";

export default function App({ Component, pageProps }) {
  return (
    <ClerkProvider {...pageProps}>
      <SignedIn>
        <Component {...pageProps} />
      </SignedIn>
      <SignedOut>
        <SignIn />
      </SignedOut>
    </ClerkProvider>
  );
}

Best For: Modern web applications prioritizing developer experience and UI consistency.

5. Okta Customer Identity Cloud

Okta's CIAM solution provides enterprise-grade social authentication without Firebase with advanced identity management features.

Key Features:

• Enterprise identity providers
• Advanced user lifecycle management
• Comprehensive compliance certifications
• API access management
• Detailed analytics and reporting

Pricing: Starts at $2.65 per monthly active user

Best For: Large enterprises with complex identity requirements and compliance needs.

6. Microsoft Azure AD B2C

Azure AD B2C offers social authentication without Firebase with strong integration into Microsoft's ecosystem.

Note: As of May 1, 2025, Azure AD B2C is closed to new customers. New projects should build on Microsoft Entra External ID, Microsoft's current customer identity (CIAM) platform. Existing Azure AD B2C tenants remain supported.

Key Features:

• Custom policy framework
• Social and local account support
• Multi-factor authentication
• Custom branding and user flows
• Global availability

Pricing: 50,000 monthly active users free, then $0.00325 per authentication

Code Example:

import { PublicClientApplication } from "@azure/msal-browser";

const msalConfig = {
  auth: {
    clientId: "your-client-id",
    authority: "https://your-tenant.b2clogin.com/your-tenant.onmicrosoft.com/B2C_1_signupsignin",
    knownAuthorities: ["your-tenant.b2clogin.com"]
  }
};

const msalInstance = new PublicClientApplication(msalConfig);

Best For: Organizations using Microsoft technologies or requiring advanced policy customization.

7. Ory

Ory provides open-source social authentication without Firebase with cloud and self-hosted options.

Key Features:

• Open-source identity infrastructure
• Self-hosted or cloud deployment
• OAuth 2.0 and OpenID Connect
• Identity and access management
• Zero-trust security model

Pricing: Open-source free, cloud starts at $29/month

Best For: Organizations requiring full control over their identity infrastructure.

8. SuperTokens

SuperTokens offers social authentication without Firebase as an open-source solution with managed cloud options.

Key Features:

• Open-source with managed options
• Social and passwordless authentication
• Session management
• Multi-tenancy support
• Self-hosted deployment

Pricing: Free self-hosted, managed cloud from $0.02 per monthly active user

Code Example:

import SuperTokens from "supertokens-web-js";
import ThirdParty from "supertokens-web-js/recipe/thirdparty";

SuperTokens.init({
  appInfo: {
    appName: "your-app",
    apiDomain: "http://localhost:3001",
    websiteDomain: "http://localhost:3000"
  },
  recipeList: [
    ThirdParty.init({
      signInAndUpFeature: {
        providers: [
          ThirdParty.Google.init(),
          ThirdParty.Github.init(),
        ]
      }
    })
  ]
});

Best For: Startups and mid-size companies wanting open-source flexibility with managed options.

Comparison Matrix: Key Features

Provider	Social Providers	Free Tier MAU	Starting Price	Open Source	Self-Hosted
Auth0	30+	25,000	$35/month	No	No
Supabase	10+	50,000	$25/month	Yes	Yes
AWS Cognito	10+	10,000	Pay-per-use	No	No
Clerk	10+	50,000	$25/month	No	No
Okta CIAM	20+	None	$2.65/MAU	No	No
Azure AD B2C	15+	50,000	$0.00325/auth	No	No
Ory	10+	Unlimited	$29/month	Yes	Yes
SuperTokens	10+	Unlimited	$0.02/MAU	Yes	Yes

Implementation Considerations

When choosing social authentication without Firebase, consider these factors:

Security Requirements

• Ensure your chosen provider meets compliance requirements (SOC 2, GDPR, HIPAA)
• Look for advanced security features like anomaly detection and risk assessment
• Verify multi-factor authentication capabilities

Integration Complexity

• Evaluate SDK quality and documentation
• Consider migration effort from existing systems
• Assess customization requirements for your specific use case

Scalability and Performance

• Review rate limits and performance guarantees
• Consider global availability and latency requirements
• Evaluate auto-scaling capabilities

Total Cost of Ownership

• Factor in development time and maintenance costs
• Consider pricing models (per-MAU vs. per-authentication)
• Account for potential future feature needs

Migration Strategies

Moving from Firebase to an alternative requires careful planning:

1. Audit Current Implementation: Document all Firebase Auth features currently in use
2. Choose Migration Strategy: Big bang vs. gradual migration
3. Data Migration: Plan user data export and import processes
4. Testing: Implement comprehensive testing for authentication flows
5. Rollback Plan: Prepare contingency plans for migration issues

Conclusion

Finding the right social authentication without Firebase depends on your specific requirements, budget, and technical constraints. Auth0 leads in features and enterprise capabilities, while Supabase and SuperTokens offer excellent open-source alternatives. AWS Cognito and Azure AD B2C provide strong cloud-native options for their respective ecosystems.

Consider your long-term authentication strategy, compliance requirements, and development resources when making your decision. Most providers offer generous free tiers, making it easy to test multiple solutions before committing.

The authentication landscape continues evolving, with new providers and features emerging regularly. Choose a solution that not only meets your current needs but can scale with your application's growth and changing requirements.