Trézor Bridge® is a secure, lightweight software component that enables safe communication between your Trezor hardware wallet and crypto applications. It creates a trusted connection between the browser or desktop environment and the hardware device while ensuring your private keys never leave the Trezor itself.
In modern crypto workflows, users rely on decentralized applications, web wallets, exchanges, NFT marketplaces, and portfolio tools. However, browsers don’t always provide direct USB access or consistent hardware connectivity. That’s where Trézor Bridge® comes in — delivering safe, stable, and validated communication designed for long-term crypto management.
Trézor Bridge is a local software layer installed on your computer. It acts as a secure tunnel between your Trezor wallet and any supported crypto interface. Rather than allowing the browser to communicate directly with the hardware, Bridge ensures the entire process is regulated, authenticated, and resistant to manipulation.
This architecture improves both reliability and safety. Even if your browser crashes, extensions interfere, or your system becomes unstable, Bridge maintains a clean, controlled channel for device communication.
All sensitive operations occur on the Trezor hardware device, ensuring nothing vulnerable is exposed to your computer or browser.
Works with multiple operating systems and major web browsers that might not fully support WebUSB communication.
Runs silently in the background, requiring almost no system resources while enabling stable crypto workflows.
Follows clear communication protocols that developers can easily rely on for secure Trezor integration.
Holding crypto safely goes beyond selecting a hardware wallet. You also need secure communication between your applications and your device. Browsers often struggle with reliable USB communication — especially across OS variations and permission settings. Trézor Bridge fixes these issues by creating a local, authenticated channel that ensures your hardware wallet behaves predictably and securely every time.
For crypto management, this means:
The Bridge acts as a secure "middleman" between your device and apps. Here’s the simplified workflow:
This flow ensures the app never accesses private keys or signature material. The hardware does the signing, and the user always confirms actions physically.
Installing the Bridge is quick and straightforward. Always download from an official source to ensure authenticity and avoid malicious tampering.
# macOS example
ps aux | grep trezor-bridge
# Linux example
systemctl --user status trezor-bridge
# Windows
Use Task Manager → Background processes list
Trézor Bridge is designed with a minimal attack surface. It doesn’t sign transactions, generate keys, or access sensitive data. Instead, it acts purely as a communication relay.
Even if malware compromises your computer, it still cannot extract keys or perform unauthorized transactions. The device requires your physical action to sign anything.
Because Trézor Bridge is protocol-based, it integrates smoothly with apps designed to work with Trezor communication standards.
If the Bridge isn’t working properly, try these proven fixes:
If detection issues persist, consult detailed documentation or support channels for OS-specific guidance.
No. It only forwards encrypted communication. All private key operations happen on the device.
Some modern browsers support WebUSB, but Bridge provides the most reliable and secure experience overall.
No. You must confirm every action physically on the hardware wallet.
Yes. Most dApps will let you choose between connected devices if multiples are detected.
Developers integrating hardware-wallet support can rely on Trézor Bridge for predictable behavior across systems. Its protocols help ensure hardware communication remains safe, readable, and consistent.
Trézor Bridge® is a cornerstone of safe, dependable crypto asset management. Its secure architecture, combined with hardware-level protections, ensures that your crypto interactions remain stable, trustworthy, and protected from threats. Whether using DeFi apps, managing tokens, or browsing blockchain tools, Bridge ensures your Trezor wallet communicates only through a safe and validated channel.
Download Trézor Bridge®