The Best Bitcoin Hardware Wallets & Seed Phrase Backup Tools
A simple directory of the best Bitcoin signing devices, metal seed backup tools, and supporting wallet software — because your sats are best stored cold.
SeedSigner
Next-level Bitcoin security. SeedSigner is an offline, air-gapped Bitcoin transaction signing device from off-the-shelf components you can get for less than $50!
The goal of SeedSigner is to lower the cost and complexity of Bitcoin multi-signature wallet use. To accomplish this goal, SeedSigner offers anyone the opportunity to build a verifiably air-gapped, stateless Bitcoin signing device using inexpensive, publicly available hardware components (usually < $50).
SeedSigner helps users save with Bitcoin by assisting with trustless private key generation and multi-signature wallet setup, and helps users transact with Bitcoin via a secure, air-gapped QR-exchange signing model.
SeedSigner includes the following features:
- Calculate word 12/24 of a BIP39 seed phrase
- Create a BIP39 seed phrase using D6 dice rolls
- Create a BIP39 seed phrase with entropy from a digital photo
- Guided interface to manually create a SeedQR for storage / input
- BIP39 passphrase / word 25 support
- Native Segwit Multisig XPUB generation w/ QR display
- Scan and parse transaction data from animated QR codes
- Sign transactions & transfer XPUB data using animated QR codes
- Configure user settings with optional persistence
- Remove MicroSD card after software has loaded
- Live preview during photo-to-seed and QR scanning UX
- Optimized seed word entry interface
- Support for Bitcoin Mainnet, Testnet & Regtest
- Support for custom user-defined derivation paths
- Derive indexed, child BIP85 seed phrases
- On-demand receive / change address verification
- User-configurable QR code display density & brightness
- Responsive, event-driven user interface
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