Head-to-Head Comparison · Alternative to Firebase · 🛠️ dev tools
Firebase vs Zitadel
ZITADEL provides a comprehensive identity management solution with easy APIs, customizable workflows, and serverless deployment options. Here is how Zitadel ($0/mo open source) stacks up against Firebase ($25/mo) across cost, hosting, data privacy, and real-world trade-offs.
Zitadel is a verified AGPL-3.0-licensed open-source replacement for Firebase. Switching from Firebase ($25/mo) saves $300/yr per solo seat, or $1,500/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Auth0.
Firebase vs Zitadel Specifications
facts verified 2026-11-07
| Dimension | Firebase (Paid) | Zitadel (Replacement) |
|---|---|---|
| Monthly Price | $25 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $300 / yr | $0 / yr (Save $300) |
| 1-Year Cost (5 seats) | $1,500 / yr | $0 / yr (Save $1,500) |
| 1-Year Cost (10 seats) | $3,000 / yr | $0 / yr (Save $3,000) |
| Source & License | Proprietary SaaS | open source AGPL-3.0 |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 15.5k (active nov 2026) |
Deep Dive: Switching from Firebase to Zitadel
Trade-offs, installation & data architecture
What you trade away
Requires self-hosting setup, updates, and server maintenance compared to managed Auth0.
How to deploy Zitadel
Clone https://github.com/zitadel/zitadel or deploy with Docker Compose
What it takes to run
Deploy via Docker or binary release from GitHub and configure environment variables.
Where your data lives
All application data and configuration live on your own server or local database.
Why fork Zitadel instead of vibe-coding a Firebase clone?
Instead of paying recurring SaaS fees for Firebase or rebuilding it from scratch, deploy one of the 14 battle-tested open-source alternatives like Supabase.
Firebase vs Zitadel FAQ
Is Zitadel a good free alternative to Firebase?+
Yes. Zitadel is a verified open-source (AGPL-3.0) replacement for Firebase. ZITADEL provides a comprehensive identity management solution with easy APIs, customizable workflows, and serverless deployment options.
What is the catch when switching from Firebase to Zitadel?+
Requires self-hosting setup, updates, and server maintenance compared to managed Auth0.
How much do you save switching from Firebase to Zitadel?+
Firebase costs $25/mo ($300/yr) per seat, whereas Zitadel is $0/mo. Switching saves $300/yr for a solo user, $1,500/yr for a 5-person team, and $3,000/yr for a 10-person team.
How do I install or self-host Zitadel instead of Firebase?+
Install: Clone https://github.com/zitadel/zitadel or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.
