Bitcoin Signer - Offline PSBT Signing

Bitcoin Signer

✓ Offline Mode Ready

v00000000

Key Vault

Private Key or Mnemonic

Stored Keys

0

Confirm Key

Derived taproot address

Is testnet

Account

Index

Notice

Set Label

Label

Confirm Backup

It’s very dangerous to show your private key. Ensure no person is around you.

Sign

Paste PSBT manually

View signed transaction hex

Signed Transaction QR

Address QR Code

Private Key Backup

Taproot Address

Keep this QR offline. Anyone with this key can spend the funds.

⚠️

SECURITY WARNING

Your device is currently online!

For maximum security, this Bitcoin signer should be used OFFLINE ONLY. Using this tool while connected to the internet may expose your private keys to potential security risks.

Recommended action: Disconnect from the internet (turn off WiFi/mobile data) before handling private keys or signing transactions.