Trezor Bridge provides a secure communication layer between your Trezor device and desktop browsers. Engineered for reliability and privacy, it enables safe transaction signing, device management, and third-party integrations while minimizing attack surface.
Encrypted host-to-device communication ensures that signing requests and sensitive interactions never leave the user’s control.
Official installers for Windows, macOS and Linux provide consistent behaviour across environments, with automatic update checks.
APIs and developer documentation enable robust integration into wallet frontends and third-party applications.
Below you will find detailed explanations, recommended practices, and integration options tailored for both end users and developers.
Download the official Trezor Bridge package for your operating system and install as an administrator. After installation, connect your Trezor device via USB. Supported browsers will detect the device and present a secure session for signing requests.
Use a dedicated desktop environment for high-value transactions; keep the Bridge updated, and use browser isolation when possible.
When a website requires a hardware signature, a secure prompt is generated; confirm amounts and addresses on the Trezor device display before approving.
Never approve an operation that you do not fully understand.Third-party wallets that integrate with Trezor Bridge must follow strict message formats to avoid ambiguous prompts.
Bridge includes optional automatic update checks. For enterprise or developer environments, consider pinned versions and an audit process for updates.
If the device is not detected, ensure TLS trust, reinstall the Bridge, and verify USB drivers. Contact official support for unresolved issues.
Trezor Bridge operates as a local host-client that only forwards cryptographic operations to the hardware device. Private keys never leave the device; the Bridge facilitates transport and does not store seeds or private material.
Ensure the host OS is hardened; remote attackers on the host could attempt to manipulate prompts. Always verify the transaction details on the device screen before signing.
Developers can integrate Bridge endpoints for programmatic detection and session handling. Follow official documentation and use the signed message standards for transaction payloads.
Follow these steps for a secure install and optimum setup.
The content provided on this page is informational and educational. It is not legal or financial advice. Users are solely responsible for maintaining the confidentiality of their recovery seed, PIN, and device. Only download Trezor Bridge from the official Trezor website. We disclaim liability for losses resulting from misuse, negligent security practices, or unauthorized access.