Trezor® Bridge is the official lightweight service that enables secure, reliable communication between your Trezor hardware wallet and desktop browsers or applications. It replaces legacy browser plugins with a modern, cross-platform connector that keeps private keys safely on your device while letting Web3 apps request signatures and addresses in a trusted way.
Interacting with decentralized applications, wallets, and exchanges requires a way for software on your computer to ask a hardware wallet to sign transactions or reveal public addresses. Trezor® Bridge provides that secure channel without exposing private keys to the host machine. When you use Bridge, signing always occurs on the Trezor device itself, and the device screen shows exactly what you are approving — protecting you from clipboard swaps, browser-based malware, and remote attackers.
When a dApp requests a signature, the request goes through your browser to Trezor® Bridge. Bridge forwards the unsigned request to your Trezor device. The device displays the transaction details (recipient, amount, fees) so you can verify them physically. Only after you confirm on the device will it sign the transaction and return the signed payload through Bridge to the application for broadcast. Because the key never leaves the device, Bridge acts as a safe messenger — not a key manager.
Security tip: Always download Bridge from an official source. Verify URLs manually or use a trusted bookmark. Trezor support will never ask for your recovery seed.
Trezor® Bridge does not store or transmit your recovery seed or private keys. Its role is limited to authenticated messaging between applications and your hardware device. For extra privacy, use Bridge with wallets that support Tor routing or other privacy-preserving options; always confirm addresses and amounts on the Trezor screen before approving.
Q: Do I need Trezor® Bridge to use my device?
A: On desktops, Bridge is the recommended way to connect to most Web3 apps. Some wallet integrations may use alternative native connections, but Bridge provides universal compatibility.
Q: Is Bridge safe to run all the time?
A: Yes — it is a lightweight background service designed for minimal exposure. It does not manage keys or collect personal transaction data.
Trezor® Bridge is the practical, secure bridge between your hardware wallet and the growing Web3 ecosystem. It preserves the strong security model of on-device signing while making everyday interactions with dApps and wallets smooth and reliable. Always keep Bridge and your device firmware updated and verify all transaction details on the device screen.