What is Trezor Bridge?

Trezor Bridge is a lightweight local service that acts as a secure gateway between your web browser or desktop apps and your Trezor hardware wallet, enabling encrypted communication and transaction signing.

How do I install Trezor Bridge?

Download the official Trezor Bridge installer for your operating system from the official site, run the installer, allow the local service to start, then connect your Trezor device and open your wallet app or supported dApp.

Is Trezor Bridge safe to use?

Yes. Trezor Bridge runs locally on your machine and only relays encrypted messages between authorized apps and the hardware device. Private keys never leave the Trezor device.

Which browsers and apps work with Trezor Bridge?

Most modern browsers (Chrome, Edge, Firefox, Brave) and native desktop apps that support Bridge or local RPC transports can use Trezor Bridge when the service is running on the host.

Troubleshooting Trezor Bridge connection issues

If your device is not detected, restart the Bridge service, try a different USB cable/port, disable conflicting extensions, update Bridge to the latest version, or consult official Trezor support for logs and guidance.

Trezor Bridge — The Secure Gateway to Your Hardware Wallet

Trezor Bridge — The Secure Gateway to Your Hardware

Trezor Bridge is the lightweight local gateway that enables modern browsers and desktop applications to communicate with Trezor hardware wallets. Designed for speed, privacy and reliability, Bridge provides an encrypted, local-only channel so you can sign transactions, manage keys and use decentralized apps while private keys remain on your device.

Local-first

Bridge runs on your machine, mediating communication on localhost so data never traverses third-party servers during signing requests.

Encrypted

All communication between Bridge and authorized apps is encrypted and authenticated to minimize tampering risks.

Compatible

Works with modern browsers and native apps that implement Bridge or similar local transport layers.

About Trezor Bridge — Purpose & Benefits

Trezor Bridge exists to simplify how web apps and desktop applications interact with hardware wallets. Instead of relying on browser-specific extensions or cloud relays, Bridge provides a consistent local endpoint (usually a localhost service) which forwards encrypted messages between applications and your Trezor device. This approach improves compatibility, reduces attack surface and makes integration straightforward for dApp developers.

Download & Install

Get the official Trezor Bridge installer for Windows, macOS or Linux from the official Trezor site. Run the installer, allow the local service and (if prompted) grant local transport permissions. After installing, connect your Trezor device and confirm the device is detected by the companion app or web interface. Always verify the download comes from the official domain and check checksums or signatures when provided.

Security Model

Trezor Bridge is intentionally minimal: it does not hold or process private keys. Keys are generated and stored on the Trezor device’s secure element. Bridge acts as a relay — receiving commands from authorized apps, forwarding them to the device, and returning signed responses. The core security guarantees come from on-device signing, firmware verification and user confirmations shown on the device screen.

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Troubleshooting

If Bridge does not detect your device: restart the service, try a different USB cable/port, disable conflicting browser extensions, reinstall Bridge and ensure your OS drivers are up to date. For persistent issues, capture logs and consult official support channels rather than using unofficial fixes.

Developer Integration Notes

Developers can integrate with Bridge by using the documented local endpoints and API patterns. Keep payloads compact, request only necessary scopes, and always display transaction summaries in a human-readable fashion for users before signing. Bridge simplifies local integration while preserving the critical on-device approval step for security.

Frequently Asked Questions

1. What is the role of Trezor Bridge?

Trezor Bridge acts as a secure local gateway that forwards encrypted messages between browsers/apps and your Trezor hardware device, enabling transaction signing and device management without exposing keys.

2. Do I need Bridge to use my Trezor device?

Bridge is required for certain browsers and desktop integrations; some native apps provide alternative transports. Use the official instructions for the recommended setup for your platform.

3. Where can I safely download Bridge?

Always download Trezor Bridge from the official Trezor domain or verified distribution channels. Verify checksums or signatures when available to ensure integrity.

4. Is Bridge sending my keys to the cloud?

No. Bridge merely relays encrypted requests locally. Private keys are generated and remain on the Trezor device; Bridge does not upload keys to remote servers.

5. How do I report issues with Bridge?

Gather logs, note OS and browser versions, and contact official Trezor support or open a support ticket via the official support channels. Avoid sharing your recovery seed or private keys when seeking help.