Bitcoin Address Generator

How to Use the Bitcoin Address Generator

This educational tool generates Bitcoin key pairs and addresses using the same elliptic curve cryptography (secp256k1) that powers the Bitcoin network. All computation runs in your browser using pure JavaScript — no private keys are ever transmitted.

Generating a Key Pair

Click Generate Key Pair to create a new random private key, derive the corresponding public key using secp256k1 elliptic curve multiplication, and compute the Bitcoin address using SHA-256, RIPEMD-160, and Base58Check encoding.

Understanding the Output

Private Key (Hex): A random 256-bit number displayed as 64 hexadecimal characters. This is the secret that controls the associated Bitcoin funds.

Private Key (WIF): Wallet Import Format — the private key encoded with Base58Check for use in Bitcoin wallets. Starts with '5' for uncompressed or 'K'/'L' for compressed keys.

Public Key (Compressed): The 33-byte compressed public key derived from the private key via elliptic curve point multiplication on secp256k1.

Bitcoin Address: The P2PKH (Pay-to-Public-Key-Hash) address derived by hashing the public key with SHA-256 then RIPEMD-160, adding a version byte, and encoding with Base58Check.

Educational Disclaimer

This tool is for educational and demonstration purposes only. For real Bitcoin transactions, always use established wallet software with proper key management, backup, and security features. Never use browser-generated keys for storing significant value.

Frequently Asked Questions

Q: Is this safe for real Bitcoin?

A: This tool is for educational purposes. While the cryptography is correct, browser-based key generation lacks the security guarantees of dedicated wallet software. Do not use these keys for real funds.

Q: What is secp256k1?

A: secp256k1 is the specific elliptic curve used by Bitcoin. It defines the mathematical parameters for the public/private key relationship. The name refers to the curve's equation y^2 = x^3 + 7 over a specific prime field.

Q: What is Base58Check encoding?

A: Base58Check is Bitcoin's encoding format that uses 58 alphanumeric characters (excluding easily confused characters like 0, O, I, l) plus a 4-byte checksum to detect errors in addresses.