What Trezor Bridge is, how it used to work, current best practices, security notes and a ready-to-use HTML template for teams and presenters. (Structured with H1 → H5 for easy slide conversion.)
Trezor Bridge was a small background application that allowed Trezor hardware wallets to communicate with the Trezor Suite app and supported web browsers. It acted as a local bridge between a USB-connected physical device and the browser or desktop software, enabling secure transaction signing and device management without exposing the device directly to the web.
Trezor Bridge provided a consistent USB communication layer across operating systems and browsers, simplifying integration and avoiding the need for browser-specific drivers or legacy extensions.
End-users connecting Model One or Model T devices to desktop browsers before Trezor Suite absorbed most Bridge functionality.
Important: the standalone Trezor Bridge has been deprecated in favor of Trezor Suite which integrates the necessary communication layers. Users are encouraged to use Trezor Suite (desktop or web) as the primary interface for device management, and to uninstall standalone Bridge installs to avoid conflicts.
Consolidation into Trezor Suite simplifies user experience, reduces maintenance surface and improves security by centralizing update and compatibility logic.
If you still have a standalone Bridge installed, expect troubleshooting pages and removal guides from Trezor. New users should install Trezor Suite instead.
While Trezor Bridge installers were previously available for Windows and macOS, the recommended route is Trezor Suite. If you must manage a Bridge install, follow official removal instructions to avoid conflicts.
1. Open Finder → Applications → Utilities → TREZOR Bridge 2. Double-click uninstall.pkg 3. Follow on-screen instructions
1. Open Control Panel → Programs & Features 2. Find TREZOR Bridge → Uninstall 3. Restart if prompted
Download Trezor Suite for your OS and follow the setup flow — Suite will handle device detection and firmware updates automatically.
Trezor devices are designed so that private keys never leave the hardware. Bridge itself is just a transport layer; critical security relies on device firmware, Suite and user practices (PIN, seed safekeeping).
If Suite or your OS warns about Bridge or device communication, follow official support guides and do not install untrusted software claiming to fix hardware wallet issues.
Developers integrating Trezor support should prefer the Trezor Suite APIs and the official developer docs. For legacy integrations that depended on Bridge, plan migration to supported Suite APIs and libraries.
Trezor maintains technical documentation and API references for Suite and developer integrations — consult the official docs for up-to-date endpoints and examples.
// Pseudocode demonstrating a request via the local API
fetch('http://127.0.0.1:21325/connect', { method: 'POST', body: JSON.stringify({cmd:'ping'}) })
.then(r=>r.json()).then(console.log)
Do not rely on undocumented endpoints; always prefer official SDKs and libraries to preserve user security and compatibility.