Hardware wallet reimagined
Bitkey is a secure, self-custody bitcoin wallet that combines the simplicity of a mobile app with the protection of hardware security. Take full control of your bitcoin without sacrificing ease of use.
Your private keys are protected by a secure hardware device that never connects to the internet
Manage your bitcoin with an intuitive mobile app that works seamlessly with your hardware wallet
You hold the keys to your bitcoin. No third party can access, freeze, or seize your funds
Everything you need
Bitkey uses an innovative 2-of-3 multi-signature setup that distributes trust across your mobile app, hardware device, and Bitkey's recovery service. This means even if one key is compromised, your bitcoin remains secure. The hardware device holds one key that never leaves the physical device, your mobile app securely stores another, and Bitkey maintains a third key that can only be used with your approval and a time delay for added security. This architecture provides robust protection while maintaining ease of use for everyday transactions.
Life happens, and we've designed Bitkey to handle it. If you lose your hardware device, you can easily order a replacement and restore access using your mobile app and recovery contacts. The recovery process is straightforward but secure, requiring multiple verification steps and a mandatory waiting period to prevent unauthorized access. You can also set up trusted contacts who can help you regain access to your wallet in emergency situations. All recovery options are designed with security as the top priority, ensuring your bitcoin stays safe even in worst-case scenarios.
Sending bitcoin with Bitkey is as easy as sending a text message. Open the mobile app, scan a QR code or paste a bitcoin address, enter the amount, and confirm on your hardware device with a simple fingerprint tap. The entire process takes seconds, not minutes. For everyday purchases under your configured spending limit, you can approve transactions directly from your phone without needing the hardware device. Bitkey handles all the technical complexity behind the scenes, automatically selecting optimal transaction fees and managing UTXO consolidation to keep your wallet running efficiently.
Whether you're a bitcoin beginner or a seasoned holder, Bitkey adapts to your needs. The interface guides new users through every step with clear explanations and helpful tooltips, while power users can access advanced features like coin control, custom fee selection, and detailed transaction history. The setup process is streamlined to take just minutes, with the mobile app walking you through hardware device pairing, backup creation, and security verification. Bitkey also provides educational resources within the app, helping you understand bitcoin best practices and make informed decisions about your digital assets.
Your most sensitive cryptographic operations happen exclusively on the Bitkey hardware device, which uses a secure element chip—the same technology banks use for credit cards. This chip is specifically designed to resist physical tampering and sophisticated attacks. Even if your phone is hacked or infected with malware, your private keys remain completely isolated and protected. The hardware device never connects to the internet and only communicates with your phone via NFC (near-field communication), ensuring an air-gapped security model that's virtually impossible to breach remotely.
The Bitkey mobile app encrypts all sensitive data using your device's secure enclave or keystore, leveraging biometric authentication for access control. Your app key is protected by multiple layers of encryption and is never transmitted over the network in plaintext. The app uses certificate pinning to prevent man-in-the-middle attacks and implements strict security policies including jailbreak detection and runtime application self-protection. All communication between the app and Bitkey's servers uses end-to-end encryption, ensuring that even Bitkey cannot access your private transaction data or spending patterns.
Bitkey includes sophisticated security features that protect against common attack vectors. The wallet verifies all transaction details on the hardware device's screen before signing, preventing display manipulation attacks. Time-locked recovery procedures ensure that even if an attacker gains access to recovery credentials, they cannot instantly drain your wallet—giving you time to detect and respond to threats. The system also includes spending limits that allow you to set daily maximums for mobile-only transactions, providing an additional safety net against unauthorized access to your phone.
Trust shouldn't require blind faith. Bitkey's entire software stack is open-source and available for public review on GitHub. Security researchers and developers worldwide can audit the code, verify the cryptographic implementations, and confirm that the wallet operates exactly as advertised. The hardware firmware is also open-source and reproducible, meaning you can independently verify that your device is running authentic, unmodified Bitkey software. Regular security audits by leading firms in the cryptocurrency space provide additional assurance, with all findings and remediations published transparently for the community.
We're here to help
Join thousands of people securing their financial freedom with Bitkey. Order your hardware wallet and experience the perfect balance of security and simplicity.