Signal Desktop
A private communication client paired with an Android or iOS device for end-to-end encrypted messages, files and calls, with device management and local-data considerations.
What Signal Desktop is useful for
Signal Desktop pairs with an Android or iOS account for everyday messages, files and calls. The mobile app remains the main account and linked-device management entry point. End-to-end encryption protects the communication design, while notifications, local caches, operating-system accounts and backups still require separate protection on the computer.
Pairing and device boundaries
A linked desktop should be named and reviewed in the mobile device list. Moving phones, handing over a computer or seeing an unfamiliar device requires removing the old link before pairing again. Shared computers should use a separate system account, screen lock and limited notification previews.
Maintenance note
This page reviews Signal Desktop 8.12.0, mobile pairing, end-to-end encryption, linked-device management, notifications, local data and upgrades. Content review date: 2026-08-23.
Save to your cloud drive
Open the cloud drive to get the file directly, or save it for convenient access on another device.
Quark Cloud Drive
RecommendedSave Signal Desktop to this cloud drive
Baidu Netdisk
Save Signal Desktop to this cloud drive
Signal Desktop 8.12.0 installation and pairing guide
Stabilize the mobile account and screen-lock settings, install the desktop client, scan the pairing code, then check messages, files, calls, notifications and device removal.
Before you start
- Prepare a logged-in Android or iOS device, a stable network and the desktop installer.
- Set screen locks on both devices and reduce notification previews on shared computers.
- Prepare a test contact, short message and small attachment for the pairing check.
Installation steps
- 01
Install the desktop client
Choose the Windows, macOS or Linux package, then review language, system permissions and the local data directory on first launch.
- 02
Pair with the phone
Open linked devices on the mobile app, scan the desktop QR code, confirm the device name and send a test message after pairing.
- 03
Check messages and files
Test text, image, file and call entry points, then confirm online status, notification behavior and the download directory.
Quick start
- 01
Adjust notifications and lock behavior
Disable unnecessary message previews, enable automatic locking and limit system notifications or clipboard exposure on shared computers.
- 02
Review linked devices
Inspect the mobile device list regularly, remove computers that are no longer used or cannot be identified and recheck the device name.
- 03
Verify an upgrade
Record desktop and mobile versions before updating, send a test message afterward and verify pairing, history and attachments before normal use.
Usage tips
- The desktop app is a linked device; mobile account status and the linked-device list remain the primary management controls.
- End-to-end encryption does not remove local cache, notification, system-account or backup risks on the computer.
- Treat desktop attachments and caches as working data, not as the only long-term copy of important files.
Troubleshooting and uninstall
Why did QR-code pairing fail?
Check phone time, network, desktop version and camera permissions, generate a fresh code and confirm the device name in the mobile app.
Why are new messages missing on the desktop?
Check mobile connectivity, linked-device status, desktop notifications and local network, then send a short test message to distinguish sync from display issues.
- Remove the device from the mobile appRemove the computer in the mobile linked-device list, confirm it no longer receives messages and then close the desktop application.
- Uninstall and review local dataRemove Signal Desktop through the operating system and clear local data or attachment cache as needed, while preserving mobile recovery information.
Frequently asked questions
Can Signal Desktop register an account independently?
The desktop app normally pairs with an Android or iOS account, and the mobile app handles the main registration flow and linked-device management.
Does end-to-end encryption remove local computer risks?
No. Notification previews, local caches, system accounts, disk permissions and backups remain local protection concerns on a shared or compromised computer.
What should happen when a computer is replaced?
Remove the old device from the mobile linked-device list first, then pair the new computer and send a test message after checking the device name.