Local-First • Zero Cloud Dependency

One Clipboard.
Across Your Network.

Peer-to-peer clipboard sync over your local network.

No cloud relay. No clipboard storage. No telemetry.

Request Access
Runs entirely over LAN.

See It In Action

mDNS•WebSocket•SHA-256•Peer-to-Peer•No Cloud•Flutter + Win32•Zero Telemetry

Demo

How Syncara Works

WIN ↔ WIN

Windows → Windows

Instant Text & Image Sync.

WIN ↔ ANDROID

Windows ↔ Android

Cross-Device Clipboard.

Native Experience

Minimal Interface. Zero Distraction.

Syncara runs quietly in the background.
Clipboard sync without popups, noise, or interruption.

Syncara Windows App
Syncara Android App

Architecture

How It Works

Syncara establishes direct WebSocket connections between trusted devices discovered via mDNS.

📋 Source Device
🌐 Local Network
mDNS+WebSocket
🔒 Trusted Devices
  • Automatic device discovery (mDNS)

    Finds devices on your LAN instantly

  • Direct WebSocket communication

    Zero-latency peer connection

  • Identity-based pairing

    Only approved devices can sync

  • SHA-256 loop prevention

    No duplicate clipboard events

  • No central server required

    Everything stays in your network

Clipboard Data Never Leaves Your Network.

Clipboard data is transmitted directly between trusted devices.

Direct device-to-device communication
No cloud relay
No clipboard storage
Identity-based pairing
Optional relay (future, opt-in only)

Architecture

Centralized vs Peer-to-Peer

Architectural comparison of clipboard transport models.

Most clipboard tools rely on centralized infrastructure. Syncara operates entirely peer-to-peer.

Capability
Other Apps
Syncara
Network model
Cloud relay
Direct LAN (peer-to-peer)
Device discovery
Manual setup
Automatic via mDNS
Data path
Server routed
Device-to-device
Trust model
Account-based only
Identity + trusted pairing
Sync loop prevention
Basic
SHA-256 hash verification
Multi-PC distribution
Limited
Native broadcast to all trusted devices
Clipboard storage
Often server buffered
Never stored externally
Image transfer
Compressed cloud upload
Direct binary transfer
Offline LAN support
No
Yes
Background telemetry
Often enabled
None by default
Deterministic sync guarantee
Not specified
Hash-verified state sync
Identity requirement
Usually required
Required only for trusted pairing

“Clipboard data never leaves your network.”

Architecture

Core Features

Local LAN Clipboard Sync

Clipboard data syncs directly over LAN.

No central server.

No cloud dependency.

Peer-to-peer via WebSocket + mDNS.

Windows ↔ Windows

Real-Time Sync between PCs.

Copy on one PC → paste on another instantly.

Text + images supported.

Low latency. Deterministic delivery.

Windows ↔ Android

Copy on Android → paste on Windows.

  • Foreground service model.
  • Secure device pairing.
  • Strict identity boundary.

Multi-Device Broadcast

One device → multiple trusted devices simultaneously.

Not 1-to-1.

One-to-many distribution.

Google-Based Device Identity

Devices only sync if:

  • Same Google identity
  • Handshake verified
  • userId validated

No accidental cross-account leaks.

mDNS Auto Discovery

No manual IP configuration.

Devices find each other automatically on same network.

Plug-and-play behavior.

SHA-256 Loop Prevention

Prevents infinite sync loops between devices.

Minimal Resource Footprint

Lightweight, silent, and native.

Quickly deploy across your devices.

Low resource consumption.

Starts working immediately.

Audience

Who Syncara Is For

Engineers managing multiple machines
Home labs & controlled LAN environments
Privacy-focused users
Developers working across devices

Progress

Development Roadmap

Available Today

Windows

Android

In Development

Linux

macOS

Planned

Optional Cloud Relay

Team Mode

Common Questions

Frequently Asked Questions

Clipboard content is sent directly between trusted devices on the same local network. No external servers are used for data transfer.
No. Syncara does not store, log, or upload clipboard data to external servers.
Yes. Syncara works over your local network. Devices must be connected to the same LAN.
Yes. Google authentication is used to securely identify devices under the same user.
No. Syncara is designed for local-network-only operation.

Get Early Access

Request access and get first priority for the App.