About SeedSigner

SeedSigner is a revolutionary solution designed to simplify Bitcoin multi-signature wallet usage by reducing costs and complexity. It empowers users to create an air-gapped, stateless Bitcoin signing device using readily available, cost-effective hardware components, typically under $50. This innovative tool streamlines trustless private key generation, multi-signature wallet setup, and secure Bitcoin transactions through an air-gapped QR-exchange signing model.

Impressive Features

SeedSigner offers a wide range of features, including generating a 12/24-word BIP39 seed phrase, creating a seed phrase with D6 dice rolls, or using entropy from a digital photo. Its user-friendly interface guides you in manually creating a SeedQR for storage and input. You can also utilize BIP39 passphrase support, native Segwit Multisig XPUB generation with QR display, and scan and parse transaction data from animated QR codes, among other capabilities.

Secure Communication

The heart of SeedSigner is a specialized Raspberry Pi Zero (version 1.3) without WiFi or Bluetooth, ensuring the device remains isolated from potential threats. It communicates with your wallet software through a secure two-way QR code exchange process, allowing you to review and confirm transaction details on the SeedSigner screen. Using cryptographic signatures, SeedSigner proves its ability to authorize the transaction, with QR codes demonstrating this proof displayed for you to confirm.