Get the extension Bitcoin (BTC) with an offline key
Bitcoin (BTC) is the first cryptocurrency, running on its own network since 2009 with a supply capped at 21 million.
Locker Protocol Wallet shows your BTC balance in the browser and sends every BTC transfer to Locker Vault, an offline device, to be signed.
Where the wallet supports BTC
Bitcoin
Native coin
| Network |
|---|
| Bitcoin Native coin |
Receive and send BTC
Set up the wallet
Install Locker Protocol Wallet in Chrome or Brave, and Locker Vault on a spare phone kept offline. Your addresses reach the extension by QR code.
Receive BTC
Give your address on the network the sender uses. The network matters: BTC sent on one network does not arrive on another.
Send BTC
Enter the recipient and the amount in the extension and check the network fee, then scan the request with the Vault, read it there and approve.
A transfer is paid in the network's own coin, even when you send a token: keep a little of the coin shown in the table.
BTC: questions people ask
Which network should I use to receive BTC?
The one the sender uses. When you withdraw from an exchange, choose the same network in the withdrawal form as the address you give. If they do not match, the funds may not arrive.
Does Locker Protocol Wallet charge a fee to hold or send BTC?
No. Holding costs nothing and a transfer costs only the network fee. The wallet's own fee applies to swaps and bridges made in the extension, at most 0.25%, and it is shown before you sign.
Where is the private key that controls my BTC?
On Locker Vault, the offline device, derived from your recovery phrase. The extension on your computer only knows your addresses, so malware there cannot move your BTC.
Related terms
Bitcoin is not issued by Locker Protocol, and nothing on this page is investment advice.