Keccak-256 Hash Generator Online

Generate Keccak-256 cryptographic hashes from text using the original Keccak algorithm (used in Ethereum)

Input Text
Size: 0 bytes | Characters: 0
Keccak-256 Hash Output
Length: 0 characters | 64 hex digits (256 bits)

About Keccak-256

Keccak-256 is the original Keccak algorithm that was submitted to the NIST hash function competition. It is famously used in Ethereum for address generation and transaction signing.

Note: Ethereum uses Keccak-256 (not SHA3-256). The difference is the padding byte: Keccak uses 0x01 while SHA-3 uses 0x06.

Encoding and Data Utilities

Encode, decode, measure sizes, and transform common formats.