---
aid: powersync
name: PowerSync
description: >-
  PowerSync is a sync engine that automatically synchronizes backend databases
  (Postgres, MongoDB, MySQL, SQL Server) with client-side SQLite, enabling
  offline-first and local-first applications. It consists of two components: the
  PowerSync Service (available as a managed cloud service or self-hosted via
  Docker) and a set of open-source client SDKs. Client SDKs are available for
  JavaScript/Web, React Native, Flutter/Dart, Kotlin, Swift, Node.js, .NET, and
  Rust. Authentication is handled via JWT tokens, with support for major
  providers including Auth0, Firebase, Supabase, Amazon Cognito, and Azure AD.
  PowerSync streams database changes in real-time so clients can query and
  mutate local SQLite without waiting on the network.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Developer Tools
  - Database
  - Sync
  - Offline-First
  - SQLite
  - Local-First
  - Real-Time
url: https://raw.githubusercontent.com/api-evangelist/powersync/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
specificationVersion: '0.19'
apis:
  - aid: powersync:sync-service
    name: PowerSync Sync Service API
    description: >-
      The PowerSync Service exposes a streaming sync protocol over HTTP/WebSocket
      that client SDKs connect to using JWT authentication. Clients submit their
      current bucket state and the service streams real-time checkpoint and
      operation data back, enabling incremental SQLite sync for offline-first
      apps.
    humanURL: https://docs.powersync.com/architecture/powersync-service
    tags:
      - Sync
      - Streaming
      - SQLite
      - Real-Time
    properties:
      - type: Documentation
        url: https://docs.powersync.com/architecture/powersync-service
      - type: Documentation
        url: https://docs.powersync.com/architecture/powersync-protocol

  - aid: powersync:javascript-sdk
    name: PowerSync JavaScript / Web SDK
    description: >-
      Client SDK for JavaScript and browser environments using Wasm-backed
      SQLite. Provides a PowerSyncDatabase class for local SQLite management
      with reactive queries, offline write queuing, and automatic sync with the
      PowerSync Service.
    humanURL: https://docs.powersync.com/client-sdk-references/js-web
    tags:
      - JavaScript
      - Web
      - SQLite
      - SDK
    properties:
      - type: Documentation
        url: https://docs.powersync.com/client-sdk-references/js-web
      - type: Documentation
        url: https://powersync-ja.github.io/powersync-js/web-sdk

  - aid: powersync:react-native-sdk
    name: PowerSync React Native SDK
    description: >-
      Client SDK for React Native and Expo applications, enabling offline-first
      mobile apps backed by embedded SQLite synced to Postgres, MongoDB, MySQL,
      or SQL Server.
    humanURL: https://docs.powersync.com/client-sdk-references/react-native
    tags:
      - React Native
      - Mobile
      - SQLite
      - SDK
    properties:
      - type: Documentation
        url: https://docs.powersync.com/client-sdk-references/react-native
      - type: Documentation
        url: https://powersync-ja.github.io/powersync-js/react-native-sdk

  - aid: powersync:flutter-sdk
    name: PowerSync Flutter / Dart SDK
    description: >-
      Client SDK for Flutter and Dart applications providing embedded SQLite
      sync with Rust-backed native connection pools and built-in encryption
      support.
    humanURL: https://docs.powersync.com/client-sdk-references/flutter
    tags:
      - Flutter
      - Dart
      - Mobile
      - SDK
    properties:
      - type: Documentation
        url: https://docs.powersync.com/client-sdk-references/flutter
      - type: Documentation
        url: https://pub.dev/packages/powersync

  - aid: powersync:kotlin-sdk
    name: PowerSync Kotlin SDK
    description: >-
      Client SDK for Kotlin Multiplatform applications, enabling offline-first
      Android and cross-platform apps with embedded SQLite synced to backend
      databases.
    humanURL: https://docs.powersync.com/client-sdk-references/kotlin-multiplatform
    tags:
      - Kotlin
      - Android
      - Mobile
      - SDK
    properties:
      - type: Documentation
        url: https://docs.powersync.com/client-sdk-references/kotlin-multiplatform

  - aid: powersync:swift-sdk
    name: PowerSync Swift SDK
    description: >-
      Client SDK for Swift applications enabling offline-first iOS and macOS
      apps with embedded SQLite synced to backend databases via the PowerSync
      Service.
    humanURL: https://docs.powersync.com/client-sdk-references/swift
    tags:
      - Swift
      - iOS
      - macOS
      - SDK
    properties:
      - type: Documentation
        url: https://docs.powersync.com/client-sdk-references/swift

common:
  - type: Website
    url: https://powersync.com/
  - type: Documentation
    url: https://docs.powersync.com/
  - type: GitHubOrganization
    url: https://github.com/powersync-ja
  - type: LinkedIn
    url: https://www.linkedin.com/showcase/journeyapps-powersync/
  - type: Blog
    url: https://powersync.com/blog
  - type: Pricing
    url: https://powersync.com/pricing
  - type: StatusPage
    url: https://status.powersync.com/
  - type: X
    url: https://twitter.com/powersync_
  - type: Changelog
    url: https://releases.powersync.com/
  - type: Plans
    url: plans/powersync-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/powersync-rate-limits.yml
  - type: FinOps
    url: finops/powersync-finops.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com