# Firebase Authentication alternatives: what AI models name instead, October 2026

IT AI Recommendation Index, October 2026 Edition. 229 of the 252 answers in the 1 category where Firebase Authentication holds a standing named it neither first nor as an alternative; these are the first choices those answers made. Page: https://it-ai-index.com/vendors/firebase-authentication/alternatives/

## Named instead, most often (every category and segment added)

- Auth0: 57
- Clerk: 31
- Frontegg: 26
- Microsoft Entra External ID: 9
- FusionAuth: 8
- WorkOS: 8

## Customer identity and access management

**Small business**: 67 of 84 answers did not name Firebase Authentication (Firebase Authentication is #10 of 14 at 0%).

- Clerk: first choice in 23 of those 67
- Frontegg: first choice in 12 of those 67
- Auth0: first choice in 7 of those 67
- WorkOS: first choice in 6 of those 67
- Kinde: first choice in 4 of those 67
- Amazon Cognito: first choice in 3 of those 67
- FusionAuth: first choice in 3 of those 67
- Supabase Auth: first choice in 3 of those 67

**Mid-market**: 78 of 84 answers did not name Firebase Authentication (Firebase Authentication is #10 of 14 at 2%).

- Auth0: first choice in 14 of those 78
- Frontegg: first choice in 12 of those 78
- Clerk: first choice in 8 of those 78
- LoginRadius: first choice in 7 of those 78
- Descope: first choice in 4 of those 78
- FusionAuth: first choice in 2 of those 78
- Microsoft Entra External ID: first choice in 2 of those 78
- WorkOS: first choice in 2 of those 78

**Enterprise**: 84 of 84 answers did not name Firebase Authentication.

- Auth0: first choice in 36 of those 84
- Microsoft Entra External ID: first choice in 7 of those 84
- Ping Identity: first choice in 5 of those 84
- FusionAuth: first choice in 3 of those 84
- Frontegg: first choice in 2 of those 84
- Microsoft Entra ID: first choice in 2 of those 84
- Ping Identity / ForgeRock: first choice in 2 of those 84
- SSOJet: first choice in 2 of those 84

Published under CC BY 4.0. The output is the models' output; nothing here is a recommendation by the index.