What is Trezor Bridge?
Trezor Bridge is the lightweight desktop application that creates a secure, local connection between your computer and your Trezor hardware wallet. It acts as a translator between your browser and the device, enabling seamless interaction with web-based wallet interfaces and crypto management tools without exposing private keys to the internet.
Why you need it
Installing Bridge allows browsers to detect and communicate with Trezor devices through a secure local web endpoint. This reduces remote attack surface and ensures that signing and verification happen with visibility on the hardware device.
Quick install & verification
- Download the installer from the official Trezor website for Windows, macOS, or Linux.
- Verify any published checksums (SHA256) against the downloaded file before running the installer.
- Run the installer and connect your Trezor using a known good USB cable.
macOS / Linux: sha256sum trezor-bridge-installer.file Windows PowerShell: Get-FileHash .\trezor-bridge-installer.file -Algorithm SHA256
Troubleshooting highlights
If your browser does not see the device after install, restart the browser, reconnect the cable, or reboot your system. On Linux you may need udev rules; on Windows approve official driver prompts. Always confirm transactions on the Trezor screen.
Security checklist
- Download only from official domains and verify HTTPS.
- Compare checksums or signatures when available.
- Keep OS, browser, and Bridge up to date.
- Store recovery seeds offline and never enter them into a computer.