Addresses & payments

Bitcoin Address Validator

Learn what address-format validation can and cannot tell you.

Runs locally

Security & privacy. Calculations run locally. Check the network and inputs. Estimates of fees, policy acceptance, prices and future block timing are not guarantees.

Use this tool

Calculates on your device. Results that depend on future blocks or policy are estimates.

Testnet and signet share address encodings. A valid address does not prove ownership.

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What this tool is for

Address validation checks supported encoding, checksum and network rules. A valid address does not prove ownership, transaction history, or that the intended recipient controls it.

Supported behavior

Testnet and signet share address encodings. A valid address does not prove ownership.

Security & privacy

Calculations run locally. Check the network and inputs. Estimates of fees, policy acceptance, prices and future block timing are not guarantees.