Keep every app state in agreement.
DataSync gives teams a typed sync layer for offline-first products, collaborative workflows, and multi-device state without rebuilding the same queue twice.
Live Mesh
Production sync stream
Replication lag
last 30 minutes
Event trail
Conflicts
14
Resolved
100%
Retries
0.03%
Trusted by developers at world-class companies
The sync layer your product team stops worrying about
DataSync handles the operational parts of distributed state so your team can keep shipping product behavior.
Real-Time Sync
Changes propagate across connected devices without polling loops or stale reads.
Offline Queue
Writes are stored locally, replayed safely, and reconciled when a device comes back online.
Conflict Policies
Choose field-level merge rules, approvals, or last-write fallbacks for each collection.
Edge Replication
Regional replication keeps collaborative apps responsive as traffic moves around the globe.
Security Controls
Scoped keys, encrypted transport, audit trails, and team permissions are built in.
Typed SDKs
Ship with JavaScript, Swift, Kotlin, Flutter, and React Native from the same API model.
A small API surface for serious sync behavior
Get started with just a few lines of code. Our SDKs handle all the complexity of real-time synchronization, offline support, and conflict resolution.
- Type-safe APIs with full TypeScript support
- Intuitive query builder with reactive subscriptions
- Automatic offline persistence and sync
- Comprehensive error handling and retry logic
import { DataSync } from '@datasync/sdk'
// Initialize the client
const sync = new DataSync({
apiKey: process.env.DATASYNC_API_KEY,
database: 'my-app'
})
// Subscribe to real-time updates
const unsubscribe = sync
.collection('tasks')
.where('status', '==', 'active')
.subscribe((tasks) => {
console.log('Tasks updated:', tasks)
renderTasks(tasks)
})
// Create a new document (syncs automatically)
await sync.collection('tasks').add({
title: 'Build something amazing',
status: 'active',
createdAt: new Date()
})From install to production traffic in minutes
Getting started is deliberately plain: connect the SDK, define sync behavior, and observe the stream.
Connect
Install the SDK, add your key, and describe your collections with TypeScript types.
Sync
Write locally, subscribe to changes, and let DataSync handle delivery and replay.
Scale
Move from pilot to production with regional replication, audit logs, and usage controls.
added 1 package in 1.2s
✓ Generated type definitions
✓ Ready to sync!
Predictable pricing for real product traffic
Start free, scale as you grow. No hidden fees, no surprises.
Starter
Perfect for side projects and experiments
- 10,000 syncs / month
- 1 GB storage
- 2 databases
- Community support
- Basic analytics
Pro
For growing teams and production apps
- 1M syncs / month
- 50 GB storage
- Unlimited databases
- Priority support
- Advanced analytics
- Custom conflict rules
- Team collaboration
Enterprise
For large-scale deployments
- Unlimited syncs
- Unlimited storage
- Dedicated infrastructure
- 24/7 phone support
- SLA guarantee
- SSO & SAML
- On-premise option
- Custom integrations
Have questions? Check out our FAQ or contact us.
Trusted by teams shipping collaborative products
Join thousands of developers who've simplified their data sync.
"DataSync cut our development time in half. We went from struggling with real-time sync to having it just work. The offline support is incredible."
"We migrated from Firebase and never looked back. The conflict resolution alone saved us weeks of debugging. Highly recommended for any team building collaborative apps."
"The SDK is beautifully designed. It feels like the API was written by developers who actually use it. Setup took 10 minutes and we were syncing data."
Ready when you are
Give your product a sync backend that behaves like infrastructure.
Start with the free tier, test the SDK, and bring production traffic over when your team is ready.