Trezor Bridge is the local communication layer that connects your Trezor Hardware Wallet to the Trezor Suite and trusted web services. Install it from Trezor.io/start to enable encrypted device communication, faster detection, and safer transaction signing.
Trezor devices offer hardware-level protection for private keys, but they still need a reliable and secure way to communicate with the apps and services you use. That is where Trezor Bridge plays its role: it provides a minimal, trusted bridge between the physical device and software such as the Trezor Suite or browser-based wallet integrations. Unlike deprecated browser extensions, Bridge runs locally on your machine and exposes a secure, encrypted API so that only authorized applications can request signatures or device data.
“The Bridge keeps your private keys offline while enabling a fluid user experience on modern web browsers and desktop clients.”
When installed, Bridge runs as a small service on your computer. It listens on a local port and communicates with applications via a well-defined, encrypted protocol. When the Trezor Suite or a supported web page needs to perform an action (for example, sign a transaction or verify an address during a Trezor Login attempt), it sends a request to Bridge. Bridge forwards that request to the connected Trezor device and relays the signed response back to the application. At all times, the private key remains inside the Trezor hardware.
Type Trezor.io/start directly into your browser address bar (do not follow unknown links). The official start page centralizes Suite downloads, Bridge installers, and setup instructions.
Choose the Windows, macOS, or Linux package. Follow the installer prompts. The installer sets up a background service that starts automatically.
Launch Trezor Suite or the supported web page, plug in your Trezor device, and follow the on-screen steps. Confirm any actions on your device when prompted.
When prompted, update your device firmware only via the official Trezor Suite flow. Bridge will assist with secure transfer of the update package to the device; the device verifies firmware signatures before installation.
To keep the Bridge running smoothly and your environment secure, follow these best practices:
If Trezor Suite does not detect your device, verify Bridge is running (check system services), confirm the USB port and cable, and ensure no other application is locking access to the device. Reinstalling Bridge from Trezor.io/start often resolves driver or permission issues.
Developers and teams can integrate Bridge-backed flows into custodial and non-custodial services. For passwordless authentication, Trezor Login can be paired with Bridge to provide hardware-backed sign-ins for supported sites. Enterprises building internal tooling can use the open API patterns to orchestrate multi-device workflows while preserving the guarantee that signing only happens on the hardware.
When building integrations, apply strict origin validation and always require explicit device confirmation before any signing operation. Leverage the existing open-source Bridge client libraries to minimize implementation errors.
Trezor Suite is the user-facing application for portfolio management and transaction creation. Trezor Bridge is the local service that enables secure, cross-platform communication between Suite (or browser apps) and the physical Trezor device.
Yes. Bridge is designed to be minimal and local. It never transmits private keys or seed phrases and relies on device-side verification for all sensitive actions.
Always download from Trezor.io/start. That page offers the correct installers and up-to-date guidance for every platform.
Yes. Install Bridge on any computer you trust and plan to use with your Trezor device. Each installation runs locally and independently.
If you believe your device or environment has been compromised, disconnect the device, use a different trusted machine, and restore from your recovery seed if necessary. Contact official support and always verify downloads from Trezor.io/start.
In modern crypto workflows, the reliability of the connection between the hardware and the software matters as much as the hardware itself. Trezor Bridge delivers a secure, open, and easy-to-manage link that enables Trezor Suite and web integrations to operate safely. Installing Bridge from Trezor.io/start is the only recommended way to set up this critical piece of infrastructure. Follow the setup flow, confirm actions on your Trezor device, and keep backups of your recovery seed stored offline. With Bridge in place, you get a smooth, dependable experience that preserves the core security promise of the Trezor platform: your keys stay with you, always.