Your Secure Gateway to Hardware Wallet Management
Trezor Bridge is a lightweight background application developed by SatoshiLabs, the creators of Trezor hardware wallets. It serves as a secure communication layer between your Trezor device and web-based applications, including Trezor Suite, third-party wallets, and decentralized finance (DeFi) platforms. Unlike older methods that relied on browser extensions, Trezor Bridge runs silently in the background, ensuring seamless, secure, and reliable connectivity.
Key Fact: Trezor Bridge replaced the deprecated Trezor Chrome extension in 2020 to improve security, compatibility, and user experience across all major operating systems.
Your Trezor hardware wallet keeps your private keys offline, but to interact with blockchain networks, sign transactions, or check balances, your computer needs to communicate with the device. Trezor Bridge facilitates this communication securely using encrypted channels. Without it, modern web apps cannot detect or interact with your Trezor device.
Getting started with Trezor Bridge is simple and takes less than 5 minutes:
Pro Tip: Always download Trezor Bridge or Trezor Suite from the official website to avoid phishing or malware.
While Trezor Bridge is highly reliable, occasional issues may arise. Here are solutions to the most common problems:
For advanced support, visit the Trezor Knowledge Base or community forums.
While Trezor Bridge is secure by design, user vigilance is critical:
SatoshiLabs continues to evolve Trezor Bridge with upcoming features like:
As the cryptocurrency ecosystem grows, Trezor Bridge remains a cornerstone of secure, user-controlled asset management.
Trezor Bridge is more than just software – it's the trusted link between your offline private keys and the online blockchain world. By enabling secure, encrypted communication without compromising your seed phrase or keys, it upholds Trezor's commitment to "security without compromise." Whether you're a long-term HODLer, active trader, or DeFi enthusiast, Trezor Bridge ensures your assets remain under your control.
Ready to secure your crypto? Download Trezor Suite today and let Trezor Bridge handle the rest.
Trezor Bridge operates as a local server using WebUSB and HID protocols to establish a secure communication channel. When you connect your Trezor device, the Bridge detects the hardware via USB and exposes a local API endpoint (typically at localhost:21325) that web applications can query. This design eliminates the need for browser-specific plugins, reducing attack surfaces and improving compatibility.
The communication is fully encrypted using protobuf messages over a secure transport layer. Every transaction request sent from a web app is forwarded to the Trezor device, displayed on its screen for physical confirmation, and only signed if the user presses the button. This "what you see is what you sign" model prevents man-in-the-middle attacks, even if the host computer is compromised.
Trezor Bridge also implements strict origin checks. Only whitelisted domains (like suite.trezor.io) or user-approved sites can initiate communication, preventing unauthorized access. For third-party integrations, users must explicitly grant permission via a pop-up, adding an extra layer of control.
| OS | Supported Browsers | Minimum Version |
|---|---|---|
| Windows 10/11 | Chrome, Firefox, Edge, Brave | Bridge v2.0.31+ |
| macOS 10.15+ | All major browsers | Bridge v2.0.31+ |
| Linux (Ubuntu, Fedora, etc.) | Chrome, Firefox | Bridge v2.0.31+ Requires udev rules |
Developers can integrate Trezor Bridge using the Trezor Connect library. This JavaScript SDK simplifies interaction with the Bridge API, enabling features like batch transactions, account discovery, and message signing in custom dApps.
For power users, Trezor Bridge logs can be enabled via command-line flags (--log) for debugging connectivity issues. Logs are stored locally and never transmitted, preserving privacy.
With over 1 million Trezor devices sold, Trezor Bridge has processed billions in transaction volume without a single confirmed breach attributed to the software. Its open-source nature allows community auditing, further reinforcing trust.
In summary, Trezor Bridge represents the gold standard in hardware wallet connectivity – secure, reliable, and user-centric. As blockchain adoption accelerates, tools like Trezor Bridge will play an increasingly vital role in protecting digital sovereignty.