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Build vs Firebase Auth

Authentication by Google — Should you build, vibe code, or buy?

Our Verdict
🤔 It Depends
Good if in Google ecosystem. Lock-in concerns.
Pricing
$0-$0.06/MAU
Founded
2011
HQ
Mountain View, CA
Vibe Time
1 week

What is Firebase Auth?

Firebase Auth is a authentication by google. The company is google subsidiary. With Part of Google employees, Firebase Auth serves teams looking for authentication solutions.

Strengths & Weaknesses

Strengths

  • Google backing
  • Many providers
  • Good SDKs
  • Free tier

Weaknesses

  • Google lock-in
  • Limited customization
  • Pricing can surprise

Who Should Use Firebase Auth?

Best For

Not Ideal For

Vibe Coding Firebase Auth

Using AI tools like Cursor and Claude, you can build a firebase auth-like solution in 1 week for approximately $2k-5k.

What You Can Build

What's Harder to Replicate

Getting Started

Use this prompt with Cursor or Claude to scaffold your alternative:

Build a authentication by google with these core features:


Tech stack: Next.js 14, TypeScript, Prisma, PostgreSQL, Tailwind, shadcn/ui
Include authentication, API routes, database schema, and a clean UI.

Alternatives to Firebase Auth

Supabase Auth

Open source alternative

Clerk

Better DX

Auth.js

No vendor lock-in

The Bottom Line

Whether to build or buy Firebase Auth depends on your situation. Evaluate your actual requirements before deciding.

Calculate Your Build vs Buy Costs →