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Database & Data Management · head to head

DuckDB vs Firebase Realtime Database

DuckDB logo

DuckDB

Database & Data Management

Fast in-process analytical database

From
Free
Rated
-
Full reviewWebsite
Firebase Realtime Database logo

Firebase Realtime Database

Database & Data Management

Store and sync data in real-time across all clients

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: DuckDB client-server setup remains in beta and not recommended for production distributed scenarios; Firebase Realtime Database the no-cost Spark plan caps storage at 1 GB, downloads at 10 GB per month and simultaneous connections at 100
  • They diverge on capability: DuckDB covers In-process Execution, Firebase Realtime Database covers Real-time Sync.

Where they differ

Only the attributes on which DuckDB and Firebase Realtime Database actually diverge.

Attributes where DuckDB and Firebase Realtime Database differ
AttributeDuckDBFirebase Realtime Database
Pricing modelopen-sourcefreemium
PlatformsLinux, macOS, Windows, WebAssemblyWeb, Ios, Android
Founded20192011

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Database & Data Management).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in DuckDB

  • In-process Execution
  • Columnar Storage
  • Vectorized Execution
  • Rich SQL Support
  • Parquet Support
  • CSV/JSON Import
  • Zero Dependencies
  • Python

Only in Firebase Realtime Database

  • Real-time Sync
  • Offline Support
  • JSON Storage
  • Security Rules
  • Data Validation
  • Multi-platform SDKs
  • Scalable
  • Firebase Auth

What people use each for

The jobs each tool is most often brought in to do.

DuckDB

  • Analytics and data warehousingnot Firebase Realtime Database
  • OLAP queries and data explorationnot Firebase Realtime Database
  • Data science and machine learning workflowsnot Firebase Realtime Database
  • Multi-format data ingestion and processingnot Firebase Realtime Database

Firebase Realtime Database

  • Syncing JSON application state between clients in real timenot DuckDB
  • Backing mobile and web apps with offline capable data storagenot DuckDB
  • Prototyping realtime features such as presence and chatnot DuckDB

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

DuckDB

  • Client-server setup remains in beta and not recommended for production distributed scenarios

Firebase Realtime Database

  • The no-cost Spark plan caps storage at 1 GB, downloads at 10 GB per month and simultaneous connections at 100
  • The Spark plan does not support multiple databases in a project
  • Even on the paid Blaze plan simultaneous connections are capped at 200,000 per database
  • Billing is by data transferred out at $1 per GB plus $5 per GB stored, so chatty clients cost more than the data volume suggests

Pricing, plan by plan

DuckDB

Free

No published plan breakdown. See the DuckDB review.

Firebase Realtime Database

Free
  • SparkFree
    • 1GB storage
    • 10GB/month download
    • 100 simultaneous connections
  • BlazeFree
    • Pay as you go
    • Unlimited storage
    • Unlimited connections

Which should you pick?

Choose DuckDB if

  • You need in-process execution.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, WebAssembly.
  • You also want columnar storage.
DuckDB review

Choose Firebase Realtime Database if

  • You need real-time sync.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want offline support.
Firebase Realtime Database review

Questions people ask

Is DuckDB or Firebase Realtime Database better?
Neither clearly leads. DuckDB starts at Free and Firebase Realtime Database at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, DuckDB or Firebase Realtime Database?
DuckDB starts at Free and Firebase Realtime Database at Free.
Does DuckDB or Firebase Realtime Database run on more platforms?
DuckDB runs on Linux, macOS, Windows, WebAssembly. Firebase Realtime Database runs on Web, Ios, Android.
Can I use DuckDB for free?
Both have a free tier, so you can try either at no cost before committing.
What is DuckDB best used for?
DuckDB is most often used for analytics and data warehousing, olap queries and data exploration, data science and machine learning workflows, multi-format data ingestion and processing. Of those, analytics and data warehousing and olap queries and data exploration are not what Firebase Realtime Database is typically brought in for.
What can DuckDB do that Firebase Realtime Database cannot?
DuckDB covers In-process Execution, Columnar Storage, Vectorized Execution, Rich SQL Support. Firebase Realtime Database covers Real-time Sync, Offline Support, JSON Storage, Security Rules.
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