See it in action
Modern dark interface designed for simplicity and efficiency
Network Devices
File Transfers
SyncBeam is a peer-to-peer file and clipboard transfer application for Windows. Now with automatic firewall configuration, UPnP port mapping, and NAT traversal.
Modern dark interface designed for simplicity and efficiency
Powerful features designed for seamless file sharing across your local network
No more manual scripts! SyncBeam automatically configures Windows Firewall rules. Just click and connect.
Automatically opens ports on your router via UPnP. Works across different networks without manual port forwarding.
STUN-based NAT detection and hole punching. Connect peers even when both are behind different NATs.
Built-in diagnostic tools to troubleshoot connection issues. See firewall status, NAT type, public IP and more.
Zero configuration! SyncBeam devices automatically discover each other and connect. Just launch and go.
See all devices on your network - computers, phones, routers. Device-type icons help you identify each one.
Noise Protocol XX handshake with AES-256-GCM encryption. Your data is protected with the same tech used by Signal.
Transfer files over 10GB with chunked streaming and automatic resume. No file size limits.
Automatically sync your clipboard across devices. Copy on one PC, paste on another. Supports text, images, RTF and HTML.
Simply drag files to the app or drop them in the outbox folder. They'll be sent automatically to connected peers.
Works entirely on your local network. No cloud servers, no internet connection needed, no data leaves your network.
SyncBeam was built with security as a core principle, not an afterthought. Every connection is encrypted end-to-end.
// Handshake Flow Initiator Responder │ │ │──── e ──────────────────────►│ ephemeral key │ │ │◄─── e, ee, s, es ───────────│ DH + static key │ │ │──── s, se ──────────────────►│ verification │ │ │◄─── ✓ ───────────────────────│ secure channel │ │ // All traffic encrypted with AES-256-GCM + unique session keys
Get started in seconds with these simple steps
Download and install SyncBeam on two or more Windows PCs on the same network.
That's it! Devices discover each other and connect automatically. Zero configuration needed.
Drag files to send, or copy to clipboard. Use "Scan Network" to see all devices on your LAN.
Download SyncBeam for free and start transferring files securely.