Trezor Bridge — Secure Connection for Your Trezor Hardware Wallet

Reliable bridge software · Offline-first design · Protect your crypto keys
Version: Latest Stable
Secure Connection

Trezor Bridge is the secure, lightweight connection layer that lets your web browser and Trezor hardware wallet talk safely. It keeps private keys offline, makes firmware checks simple, and offers a resilient handshake that defends against network tampering and man-in-the-middle attacks.

Why Trezor Bridge matters

When you authorize transactions, every step of the connection chain must be trustworthy. Bridge provides a minimal, auditable interface: it exposes only what the browser needs while the wallet retains authority over private keys, passphrases, and device confirmation prompts.

Local-only communication

Bridge limits access locally — the browser talks to a localhost service so your device doesn't accept raw remote commands.

Automatic firmware checks

Bridge helps the Trezor Suite and web apps confirm firmware authenticity before sensitive operations.

Cross-platform

Available for Windows, macOS and Linux — small footprint, simple installer and automatic updates when configured.

Privacy-conscious

No telemetry required. Bridge can be configured to operate offline except when you explicitly opt in to updates.

Security best practices

  • Keep your Bridge and Trezor firmware up to date only from official sources.
  • Verify the device prompts on the Trezor display — never confirm a transaction sight-unseen.
  • Use a strong passphrase and a secure PIN; treat them as separate secrets from your recovery seed.
  • Prefer Trezor Suite or well-known wallet integrations that support WebAuthn / U2F where possible.

Frequently Asked Questions

Trezor Bridge is a small local application that creates a safe channel between your browser and your Trezor device. Use it when a wallet or web app requests direct device access — installers are provided for major OSes. If you use Trezor Suite (desktop app), it contains equivalent access and you may not need the Bridge separately.
Yes — Bridge's source is published so security researchers can review its code. For the highest assurance, obtain installers from Trezor's official site and verify checksums.
Common fixes: restart the Bridge service or your computer, try a different USB cable/port, confirm your browser permissions, and ensure no other wallet software is blocking USB access. If problems persist, export diagnostics and contact support with logs.
Yes — Bridge doesn't require internet for basic device communication. Updates and firmware downloads are optional and should only be done from official sources when necessary.
Always download Bridge installers and verification checksums from the project's official website or documented release page. Verify signatures when possible and avoid third-party mirrors.