Firebase Realtime Database

Firebase Realtime Database is Google's cloud-hosted NoSQL database that syncs data in realtime to connected clients, with built-in authentication and offline support for mobile and web apps.

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Overview

Category	Realtime
Self-Hostable	No
On-Prem	No
Best For	hobby, startup, growth
Last Verified	2026-02-13

Strengths & Weaknesses

Strengths:

dx
cost
customization

When to Use

Best when:

building MVPs
prototyping quickly
mobile-first apps
using Google ecosystem

Avoid if:

need SQL database
require full data control
scale to massive data volumes

Alternatives

supabase, convex, liveblocks, back4app