Overview — What is Trezor Bridge?
Trezor Bridge is the secure connection layer that links your desktop or web applications to your Trezor hardware wallet. The Bridge creates an encrypted, local communication channel so the Trezor device can safely exchange signing requests, public keys, and status information without exposing sensitive keys. This page explains the Bridge, how to install it, how to troubleshoot connectivity, and how developers can integrate Bridge-aware apps.
Bridge only tunnels local, authenticated requests between the browser/app and the hardware. It never transmits private keys externally.
Available for Windows, macOS, and popular Linux distributions — simple installers or package managers supported.
Quick Install & First Connection
Download the latest Trezor Bridge installer for your OS and run the installer. After install, connect your Trezor device via USB. Open Trezor Suite, or your Bridge-enabled web app, and follow the on-screen pairing prompts. Confirm the device prompt to authorize the connection. For developers, install the Bridge and verify with the sample CLI tool included in the SDK.
Developer Integration
When integrating Trezor Bridge in your app, use the stable public API described in the developer docs. Discover devices, create a session, request addresses or build and sign transactions. Respect the user flow: always present a human-readable transaction summary and ask the user to confirm on the physical device. The Bridge API supports JSON-RPC over a local socket or HTTP endpoint depending on platform and version.
Security & Best Practices
Security is paramount — never assume implicit trust. Always validate the originating application, use HTTPS for web UIs, and avoid storing sensitive derivation paths or seeds. Use the Bridge only as intended: as a local communication proxy that requires explicit user confirmation for signing operations. Follow firmware verification and keep Bridge up to date to pick up security patches.
Troubleshooting
If your device does not appear, try these steps: (1) ensure Bridge is running (check system tray / background services), (2) reconnect the USB cable, (3) use a direct USB port (avoid hubs), (4) update firmware and Bridge to the latest release, and (5) consult logs produced by the Bridge helper for more detail. Common issues are driver conflicts on older OS versions — follow platform-specific guidance in the download center.
Performance & Indexing Tips (for docs)
For faster indexing by Bing and other search engines: provide clear headings, structured data (JSON-LD), a sitemap.xml, and machine-readable metadata. The Bridge pages should expose API docs, changelogs, and release notes with stable URLs to encourage crawling and quick discoverability.
FAQs — Top 5
A: Trezor Bridge runs locally and securely proxies requests between apps/browsers and the Trezor hardware. It ensures requests are handled locally and requires user confirmation on the device for signing operations.
A: Download the latest installer from the official download page, run the installer, and follow prompts. On some platforms, Bridge auto-updates; otherwise check the release notes and perform a manual install.
A: Yes — Bridge is designed as a secure local communication layer. For production, pair Bridge usage with secure UI flows, domain validation, and thorough testing under your threat model.
A: Restart Bridge, try a different USB port, check for OS driver conflicts, ensure browser permissions are granted, and consult the Bridge logs. If the problem persists, use the CLI diagnostics included in the SDK.
A: Provide structured data (JSON-LD), clear meta descriptions, a sitemap, and stable URLs. Use canonical links, publish release notes, and submit your site to Bing Webmaster Tools to request crawling.