Trezor Bridge is the secure communication layer that links your Trezor hardware wallet to web-based wallet apps. This sample page demonstrates a modern body theme and responsive layout suitable for security-focused interfaces. It intentionally uses a high-contrast, cool-toned color palette with glassmorphic cards to convey trust and clarity.
Trezor Bridge transmits messages over an encrypted channel; the device signs transactions locally so private keys never leave the hardware.
The bridge runs locally on your OS and mediates communication between the browser and the device without cloud intermediaries.
Available for major desktop platforms — Windows, macOS, Linux — with consistent UX through browser integrations.
Every transaction requires explicit confirmation on the physical device, protecting against remote manipulation.
The security model centers on device-held private keys, a local bridge process for mediated communication, and strong user-attestation steps (PIN, passphrase, device confirmations). Attack surfaces to mitigate include cable and local host compromise; recommended mitigations include verifying firmware signatures, using OS-level hardening, and never sharing recovery seeds.
Common issues are typically related to outdated bridge versions, missing browser permissions, conflicting USB drivers, or the need to re-plug the device. When in doubt: restart the bridge service, try another USB port, and consult official docs for driver updates.
Q: Does Bridge send my seed to the internet?
A: No — Bridge is a local communication helper. Private keys and seeds remain on the hardware device.
Q: Is Bridge mandatory?
A: For many browsers, yes: Bridge enables the web app to interact with the device. Some wallets provide alternatives such as native desktop apps.
Hardware wallets are widely recognized as one of the most reliable ways to protect crypto assets. However, hardware alone is not sufficient: the path between a user's web wallet and the hardware device must be reliable, trustworthy, and user-friendly. Historically, web-based wallets attempted direct native USB access in browser sandboxes, which resulted in inconsistent behavior and security concerns. A dedicated local bridge process acts as a predictable, vetted mediator that abstracts platform differences and delivers a stable endpoint for browser-based wallet frontends. By isolating the host communication layer, the bridge reduces the chance that browser updates or extension conflicts will silently break critical flows. The architecture places the most sensitive operations — private key usage and transaction signatures — on the hardware device itself. Applications that integrate with this bridge must therefore follow best practices to protect the integrity of transaction requests, to present clear human-readable summaries to users, and to double-check that displayed addresses match those shown on the hardware device before final confirmation.
Beyond the implementation benefits, there's a UX advantage: the bridge improves discoverability and reduces cognitive load for end users by creating a consistent "connect" experience. The bridge can expose helpful telemetry about device status and suggest recovery paths when something goes wrong. That said, telemetry and remote logging must be opt-in and privacy preserving. The safest approach is to default to minimal logging, make any telemetry visible to the user, and avoid sending any personal or cryptographic identifiers that could be used to correlate activity.
In enterprise contexts or cold-storage operations, teams often prefer hardware wallets combined with manual air-gapped signing. Bridge-based flows are optimized for convenience and frequent usage, striking a balance between friction and security. Bridge usage is appropriate for everyday signing tasks when combined with hardware confirmations. For very large transactions, organizations may adopt multi-sig setups or offline signing to further reduce online exposure.