Direct. Private. Powerful.

Your files.Your devices.Directly connected.

Transfer files directly between your devices — no mandatory cloud storage, no middleman. Fast, private and under your control.

Download▶Learn how it works
End-to-end encrypted
Blazing fast P2P
No mandatory cloud
Sizial Peer device network
PEER CORE

Everything you need for direct transfer.

Peer combines speed, resilience and control in one polished workflow.

Direct transfer

Files go straight between your devices whenever a direct route is available.

LAN first

Uses your local network first for maximum speed and minimum latency.

No cloud storage

Your files do not have to be uploaded to Sizial storage before reaching another device.

Resume transfers

Pause, reconnect or change route without restarting a large transfer from zero.

Trusted devices

Approve your devices once and keep full control over your private device network.

QR pairing

Pair a new phone or computer in seconds with a simple QR flow.

Background transfer

Keep large transfers running in the background with clear progress and notifications.

Transfer history

See recent transfers, progress, device, speed, completion status and failures.

PERSONAL CLOUD

Your computer can become your cloud.

Choose folders on your home PC and reach them remotely through Peer. Browse, upload and download while the files stay on your own storage.

  • Remote folder access
  • Your disks, your capacity
  • Photo and document backup
Personal Cloud and Sync
SYNC

Keep selected folders in sync.

Back up your camera roll or synchronize selected directories between trusted devices without turning Peer into a traditional cloud drive.

Camera backupFolder syncResume
Sizial Peer Sync
SMART ROUTING

Always the best available path.

Peer negotiates the connection automatically and chooses the best available transport.

01
Local NetworkLAN
02
Direct P2PInternet
03
IPv6 DirectDirect
04
Secure RelayFallback
A
P2P
B

Connection changed. Transfer didn’t.

If a direct route drops, Peer can continue over another negotiated path instead of retransmitting the whole file.

Sizial Peer Security
PRIVACY & SECURITY

Privacy is part of the architecture.

Your data path stays under your control — with encrypted transfer and trusted device management.

01

End-to-end encryption

Transfer data is encrypted between participating devices.

02

Trusted device control

You decide which devices can connect and can revoke trust at any time.

03

Minimal server role

The service can handle identity, presence and signaling without becoming mandatory file storage.

SUPPORTED DEVICES

One Peer. All your devices.

Start on Android and expand the same private network to desktop, iPhone and NAS clients.

Android

Available

Windows

Beta

iPhone

Coming soon

Mac OS

Coming soon

CLI

Available

*nix

Coming soon

NAS

Planned
DOWNLOAD

Choose your platform.

Download Sizial Peer from an official source for your device.

CLI

Command line

For servers and advanced users. No window, just a terminal.

Install the command-line tool

Sizial Peer for a terminal. Installation is one command: copy it, paste it into the window, press Enter.

Windows

1. Press the Windows key, type PowerShell, press Enter.
2. Paste this line and press Enter:

irm https://peer.sizial.com/cli/install.ps1 | iex
Linux and macOS

1. Open Terminal.
2. Paste this line and press Enter:

curl -fsSL https://peer.sizial.com/cli/install.sh | sh

After installation, sign in once with your account: peer login
To see all commands, type: peer -h
REAL USE CASES

From one photo to a multi-gigabyte folder.

01

Phone → PC

Move photos and videos home without first uploading them to a cloud drive.

02

PC → Phone

Reach a document on your own computer from another trusted device.

03

Automatic backup

Keep selected phone data backed up to your own PC or NAS.

04

Device → Device

Transfer folders between devices you already own and trust.

LAN PERFORMANCE

As fast as your connection.

On LAN, Peer can use the bandwidth available between your devices instead of routing every byte through remote storage.

Local network speed

Take control of your transfers.

Fast. Private. Direct. No cloud. No limits. Just your devices.

Sizial Peer