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RxDB vs Supabase

Professional comparison and analysis to help you choose the right software solution for your needs.

RxDB icon
RxDB
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Supabase

RxDB vs Supabase: The Verdict

⚡ Summary:

RxDB: RxDB is an open-source, reactive database for JavaScript applications. It is indexedDB/WebSQL under the hood but brings a NoSQL interface with queries, schemas, sync and much more to the front-end browser environment.

Supabase: Supabase is an open source alternative to Firebase. It offers easy backend storage, authentication, and APIs for web and mobile applications. Supabase provides an interface similar to Firebase with realtime databases, authentication, storage, and more.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature RxDB Supabase
Sugggest Score — —
Category Development Development
Pricing Open Source Freemium

Product Overview

RxDB
RxDB

Description: RxDB is an open-source, reactive database for JavaScript applications. It is indexedDB/WebSQL under the hood but brings a NoSQL interface with queries, schemas, sync and much more to the front-end browser environment.

Type: software

Pricing: Open Source

Supabase
Supabase

Description: Supabase is an open source alternative to Firebase. It offers easy backend storage, authentication, and APIs for web and mobile applications. Supabase provides an interface similar to Firebase with realtime databases, authentication, storage, and more.

Type: software

Pricing: Freemium

Key Features Comparison

RxDB
RxDB Features
  • Realtime sync
  • Schema-based
  • Query language
  • Multi-platform - runs in Node, Browser, React Native, Electron
  • Encryption
  • Replication
Supabase
Supabase Features
  • Realtime Database
  • User Management & Authentication
  • Storage
  • APIs
  • Dashboards

Pros & Cons Analysis

RxDB
RxDB

Pros

  • Open source
  • Fast due to indexing
  • Reactive/Realtime
  • Works offline
  • Schema helps prevent bugs

Cons

  • Less query flexibility than NoSQL
  • Not as scalable as server databases
  • Requires more code than simple localStorage
Supabase
Supabase

Pros

  • Open source alternative to Firebase
  • Easy to set up
  • Scales automatically
  • Free tier available
  • Built on Postgres database

Cons

  • Less mature than Firebase
  • Limited third-party integrations
  • Not as feature rich as Firebase

Pricing Comparison

RxDB
RxDB
  • Open Source
Supabase
Supabase
  • Freemium

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Learn More About Each Product

RxDB
RxDB
Reviews, pricing & alternatives →
Supabase
Supabase
Reviews, pricing & alternatives →

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