Create your seed your way
- Generate a BIP39 seed.
- Generate entropy using dice rolls.
- Generate entropy using the device camera.
- Import an existing BIP39 seed.
- Use BIP39 passphrases.
- Load a seed using SeedQR.
FOSS Signers
SeedSigner
Sign Bitcoin. Offline.
A small, air-gapped Bitcoin signing device. Keep your private keys away from connected devices and sign Bitcoin transactions through QR codes.
₹8,499Assembled, tested and supported by Bitasha in India
Why buy here
- Assembled and tested in India
- Open-source hardware and software
- Setup guidance included
Works with compatible wallet software
- Sparrow
- Nunchuk
- Keeper
- BlueWallet
- Specter Desktop
- Other Bitcoin wallet software supporting compatible QR signing workflows
How it works
Seven steps. Keys stay offline.
01
Create or load your seed.
02
Set up your wallet using public wallet information.
03
Create a transaction on your connected computer or phone.
04
Scan the transaction QR with SeedSigner.
05
Verify the transaction on the SeedSigner screen.
06
Sign offline.
07
Scan the signed transaction back and broadcast.
Typical build
Inexpensive, widely available parts.
Exact hardware components may vary depending on the Bitasha SeedSigner build.
| Component | Purpose |
|---|---|
| Raspberry Pi Zero | Runs SeedSigner |
| 1.3-inch LCD | Interface and QR display |
| Camera | Scans QR codes |
| microSD card | Boots SeedSigner software |
| Physical controls | Navigate and approve actions |
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