Keccak-256 Hash Generator — Ethereum & Solidity keccak256() Digest

Cách dùng

1. 1 Pick Text or File mode.
2. 2 Type / paste text, or choose a file (≤ 50 MB).
3. 3 Pick output encoding (hex for Ethereum use, Base64 for general).
4. 4 Copy the 32-byte digest.

Vì sao dùng công cụ này

• Keccak-256 is the hash used everywhere in Ethereum — function selectors, event topics, address derivation, EIP-712 typed data.
• Different from SHA-3-256 (different padding) — picking SHA-3 will produce a different hash than Solidity's `keccak256()`.
• Run on text (UTF-8) or any file up to 50 MB.
• Pure client-side — input never uploaded.

Câu hỏi thường gặp

Keccak-256 Hash Generator là gì?

A Keccak-256 Hash Generator is a tool that computes the Keccak-256 digest of text or files, the hash function used throughout Ethereum. It produces output matching Solidity's keccak256(), which differs from the finalized NIST SHA-3 standard, and supports uses such as deriving function selectors. The hashing runs entirely client-side in the browser, so input never leaves the device.

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