What is Trezor Bridge?
Trezor Bridge is (historically) the small communication service that allowed Trezor hardware wallets to talk to browsers and desktop apps. It acted as a bridge between your device and software, enabling secure transaction signing without exposing private keys. Over time Trezor has shifted users toward the all-in-one Trezor Suite experience for improved security and support.
Why the Bridge matters
The Bridge reduces friction when connecting a hardware wallet to local software, avoids browser USB permission issues, and centralizes device access controls. For enterprises and advanced users it historically enabled advanced integrations (local APIs and daemon control).
Current recommendation
Trezor recommends using Trezor Suite (desktop and web) as the primary interface for most users — it integrates bridge functionality, updates, and verification tools into a single trusted app. If you still run a standalone Bridge, consult the official deprecation guidance before updating.
Quick security checklist
- Download Suite / Bridge only from official sources.
- Verify signatures when available and keep software up-to-date.
- Uninstall deprecated standalone Bridge installations as recommended.
- Use an air-gapped recovery when handling seed phrases.
- Use platform UDEV rules / drivers on Linux per the official guides.
How it works (simple)
When a transaction is created in the app, the app sends a request over the local Bridge/daemon to the physical device. The device displays the transaction details on-screen for confirmation. Only after explicit approval does the device sign and return the signature.
For developers
Trezor provides repositories and docs for the communication daemon and integration points. Use official SDKs and follow recommended security patterns — never ship private keys or rely on unverified third-party Bridge builds.
Closing summary
Trezor Bridge provided valuable local connectivity for hardware wallets. Today, the secure, maintained path is Trezor Suite and the official guidance from Trezor / SatoshiLabs. Follow official links below for downloads, install instructions, verification steps and developer resources.