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The tools below are all offline, the data you enter is not sent anywhere; it stays locally on your computer, unless you press a button explicitly marked "online".
Please note that we cannot guarantee the accuracy of these tools, nor can we guarantee the security of your data. We cannot protect against your machine being compromised, or someone looking over your shoulder at your screen.

Base58 tools:

Hex (RMD160 hash):



Version bytes:

Address tools

Changing one of these fields will re-calculate the others. The dark fields are correctly calculated together. Red fields are invalid.

Public key hash:

Public key:

Private key:

Private key WIF:

Create custom unspendable address

Keep in mind that all coins sent to an unspendable address generated with this form will be lost forever!

Address prefix (must start with a 1):

Valid address: