Trezor Bridge | Official Connection Software for Trezor Wallets

What is Trezor Bridge? (H2)

Trezor Bridge is a small background application that acts as a bridge between your Trezor hardware device and host software (browser wallet pages or the Trezor Suite desktop/web app). It provides a secure, OS-level communication channel so that web pages can send signed transactions and fetch public account data from the device without accessing the private keys.

Why the Bridge exists (H3)

Browsers cannot directly access USB devices in a way that is compatible with the Trezor device API without either a native helper (like Bridge) or using WebUSB. Historically, Bridge replaced older browser extensions and provided a consistent cross-platform method to reach the device from web apps.

How it works (H4)

Under the hood, Trezor Bridge runs as a local HTTP/HTTPS endpoint on your machine. The wallet software or web app opens a local connection to that endpoint and the Bridge relays commands to the device. This architecture isolates direct device access and helps Trezor implement additional integrity checks, firmware checks, and permission prompts.

Compatibility & notes (H5)

Trezor Bridge traditionally shipped installers for Windows, macOS and Linux. Over time, the Trezor ecosystem evolved: Trezor Suite (the official desktop + web app) integrated many capabilities, and the standalone Bridge component was deprecated in favor of Suite-managed connections. Always prefer official downloads from Trezor's site.

Installing & updating Trezor Bridge (H2)

For many users, the recommended path today is to use Trezor Suite, which incorporates the latest connection stack. If a standalone Bridge installer is required (legacy systems or specific third-party apps), only download packages from official Trezor domains or the Trezor data server.

Safety & best practices (H3)

• Only download Bridge or Suite from official sources.
• Verify checksums/PGP signatures when available.
• If you don’t need the standalone Bridge, uninstall it if the official guidance recommends doing so.

Troubleshooting common issues (H4)

If your computer doesn’t detect the Trezor device: check USB cables, try a different port, restart the Bridge service (or Suite), and confirm OS permissions for USB access. On Linux, package managers often list a `trezor-bridge` package that can be removed or reinstalled. For persistent issues, consult Trezor’s official support guides.

Deprecation & recent changes (H2)

Important: Trezor has publicly announced the deprecation and removal of the standalone Trezor Bridge in favor of better-integrated solutions (Trezor Suite and updated browser connection flows). If you still use a legacy Bridge installation, follow the vendor instructions for uninstalling before upgrading to the latest Suite or Suite-based web connections.

Official resources (10 links, colored) (H3)

Below are official, direct links to Trezor resources referenced in this article. They are safe to open and come from Trezor-controlled domains.

Final recommendations (H4)

For most users: prefer Trezor Suite (desktop/web) and follow the official guides for installation and verification. Avoid third-party mirrors and always confirm you’re on a Trezor-controlled domain before downloading connection software. If you maintain legacy systems that require a standalone Bridge, keep it updated from the official data server and watch the deprecation guidance.

Disclaimer (H5)

This post is an informational overview and not a substitute for Trezor’s official security documentation. Links above go to Trezor-managed domains and resources; if in doubt, contact Trezor Support before making changes to your device software.