Trezor Bridge — How to download, verify, and keep your connection secure

Trezor Bridge used to be the small helper that let browsers and desktop apps talk to your Trezor hardware wallet. This guide explains where to get it, how to verify it, and why Trezor Suite is now the recommended path for most users.

Official Trezor Start Bridge (if still needed)

What is Trezor Bridge (briefly)?

Trezor Bridge is a small local application that historically enabled communication between a plugged-in Trezor device and web pages or desktop wallet software. It acts like a translator: your browser or wallet talks to Bridge, and Bridge talks to the Trezor hardware over USB. That separation provided a consistent connection across operating systems without needing a browser extension.

Important: the current recommendation

In recent years the Trezor team moved functionality into the official Trezor Suite and web-backed flows. As a result, standalone Bridge is being deprecated and users are encouraged to use Trezor Suite or the web app unless a specific workflow still requires Bridge.

Where to download safely

Always download Bridge or any Trezor software from an official Trezor domain. The canonical starting points are the Trezor Start page and the Trezor Suite download pages. Beware of search-result lookalikes — the safest route is to navigate from the main trezor.io domain or suite.trezor.io and confirm you are on an official page before downloading installers.

Verifying the download (why it matters)

Downloads can be tampered with on mirrors or in transit. Verifying the cryptographic signature of an installer ensures the binary you downloaded was produced and signed by the Trezor team and has not been replaced by a malicious file. For security-conscious users, verification is standard practice.

Quick verification steps (common platforms)

Below are the high-level steps used by many users. Exact filenames and commands will vary with version numbers—match the version you downloaded.

  1. Download the Bridge installer (e.g. trezor-bridge-2.x.x.pkg or trezor-bridge-2.x.x.deb) and the associated .asc signature file from the official page.
  2. Download the Trezor signing public key (a file with extension .asc) from the official Trezor security page.
  3. Import the signing key into your GPG keyring:
    gpg --import satoshilabs-2021-signing-key.asc
  4. Verify the signature:
    gpg --verify trezor-bridge-*.deb.asc trezor-bridge-*.deb (or replace with the .pkg/.exe filename you downloaded).

If the output says the signature is good and shows the expected key ID (and the key is what you expect from the official Trezor signing key), that’s strong evidence the installer is authentic. If GPG complains or the key ID is unfamiliar, do not run the installer and re-check that you downloaded signing key and signature from official sources.

Installation notes & platform quirks

On macOS you may get a Gatekeeper prompt on first run; on Linux you’ll use the package manager or double-click the .deb; on Windows the installer will request administrator privileges. Follow OS prompts carefully and prefer the modern Trezor Suite when possible as it bundles the necessary connectivity pieces for you.

When should you still install standalone Bridge?

Most users today will have a smoother experience with Trezor Suite or by connecting via the official web app. Standalone Bridge is primarily useful for legacy setups or for specific third-party apps that have not migrated to modern integration patterns. If your workflow depends on Bridge, keep an eye on official guidance because Bridge may be removed entirely in future releases.

Security habits that matter more than any single file

Final checklist before you run the installer

Confirm: