What is the best open-source alternative to Firebase?

Supabase is currently the top self-hosted open-source alternative to Firebase with over 0 GitHub stars. It requires 4 GB RAM.

How much can I save by replacing Firebase with a self-hosted tool?

By switching from Firebase ($25.00/month) to a self-hosted VPS ($5.00/month), you can save approximately $720.00 over a 3-year period.

Can I host Firebase alternatives on a cheap VPS?

Yes, most open-source alternatives can easily run via Docker Compose on standard cloud servers from Hostinger, Hetzner, or DigitalOcean starting at $4-$6 per month.

Data Sovereignty • Zero Vendor Lock-in • Cut Subscriptions

Top 3 Open-Source Firebase Alternatives to Self-Host (2026)

Commercial cloud solution with per-user monthly subscription fees. Rather than paying $25.00/month, deploy these battle-tested self-hosted alternatives with full privacy and unlimited usage.

Commercial Price: $25.00/mo • Self-Hosted VPS: $5.00/mo

💸 3-Year Cost Savings Calculator

36 Months Analysis

See how much your organization saves over a 3-year hardware lifecycle by hosting an open-source alternative on a single cloud VPS instead of paying monthly seat licenses.

Team Size / Seats:

1 Solo User 10 Team 25 Enterprise

3-Yr Firebase Fee

3-Yr Cloud VPS Fee

$5.00/month flat

Total 3-Yr Savings

Net ROI Profit

Ready to deploy on a high-speed $5/month cloud server? Deploy on VPS ($5.49/mo) →

Recommended Open-Source Firebase Replacements

Supabase

databases

supabase/supabase

⭐ 0

Supabase is an open source Firebase alternative. Build production apps with dedicated PostgreSQL databases, real-time subscriptions, Row-Level Security, Auth, and Edge Functions.

Min Memory

4 GB

CPU Cores

2 Core

Storage

30 GB

License

FOSS

Deploy Supabase with Docker Compose Visit Website

Appwrite

databases

appwrite/appwrite

⭐ 0

Appwrite provides developers with a set of easy-to-use and integrated REST APIs and SDKs to manage authentication, databases, storage buckets, and scheduled cloud functions.

Min Memory

2 GB

CPU Cores

2 Core

Storage

20 GB

License

FOSS

Deploy Appwrite with Docker Compose Visit Website

PocketBase

databases

pocketbase/pocketbase

⭐ 0

PocketBase is an open-source Go backend in 1 file with embedded SQLite database, user management and auth, realtime subscriptions, and an intuitive admin dashboard.

Min Memory

256 MB

CPU Cores

1 Core

Storage

5 GB

License

FOSS

Deploy PocketBase with Docker Compose Visit Website

Frequently Asked Questions

Commercial platforms like Firebase charge monthly subscription fees, enforce arbitrary usage caps, and retain access to your private company data. Self-hosting provides complete privacy, infinite scaling without seat fees, and zero vendor lock-in.

Using modern containerization with Docker Compose, spinning up these applications takes less than 5 minutes. You copy our pre-tested compose file, paste it onto your VPS, and run docker compose up -d.

A standard 2GB to 4GB RAM cloud VPS (costing ~$5/month from Hostinger or Hetzner) easily runs Firebase alternatives like Supabase alongside automated daily backups.