{
  "slug": "keccak-hash",
  "name": "gizza-ai/keccak-hash",
  "version": "0.1.0",
  "title": "Keccak-256 Hash Generator (Ethereum) — Keccak-256 / Keccak-512 — gizza.ai",
  "description": "Compute the original Keccak-256 or Keccak-512 hash of any text in your browser — the exact hash Ethereum uses, not FIPS SHA-3. Free and private.",
  "tags": [
    "keccak",
    "keccak-256",
    "keccak256",
    "keccak-512",
    "ethereum",
    "evm",
    "sha3",
    "hash",
    "digest",
    "hex",
    "base64",
    "cryptography"
  ],
  "category": "security",
  "urls": {
    "page": "https://gizza.ai/tools/keccak-hash/",
    "markdown": "https://gizza.ai/tools/keccak-hash/index.md",
    "descriptor": "https://gizza.ai/tools/keccak-hash/tool.json",
    "deep_link_example": "https://gizza.ai/tools/keccak-hash/?text=Hello%2C%20World%21&algorithm=keccak-256&input_encoding=text&output_format=hex&uppercase=true"
  },
  "cli": "gizza tool keccak-hash \"Hello, World!\"",
  "tool": {
    "description": "Compute the original Keccak digest of text — Keccak-256 (default) or Keccak-512. This is the legacy-padding Keccak used throughout Ethereum (addresses, the EVM KECCAK256 opcode, ABI selectors), which differs from FIPS-202 SHA-3 (use the hash-text tool for SHA3-256/SHA3-512). By default hashes UTF-8 text to lowercase hex; set input_encoding='hex'/'base64' to decode the input first, output_format='base64' for a base64 digest, or uppercase=true for uppercase hex.",
    "parameters": {
      "additionalProperties": false,
      "properties": {
        "algorithm": {
          "default": "keccak-256",
          "description": "Keccak variant (keccak-256 default).",
          "enum": [
            "keccak-256",
            "keccak-512"
          ],
          "type": "string"
        },
        "input_encoding": {
          "default": "text",
          "description": "How to interpret `text` before hashing.",
          "enum": [
            "text",
            "hex",
            "base64"
          ],
          "type": "string"
        },
        "output_format": {
          "default": "hex",
          "description": "Digest representation: hex (default) or base64.",
          "enum": [
            "hex",
            "base64"
          ],
          "type": "string"
        },
        "text": {
          "description": "The text to hash with Keccak.",
          "type": "string"
        },
        "uppercase": {
          "default": false,
          "description": "Emit uppercase hex (no effect on base64). Default false.",
          "type": "boolean"
        }
      },
      "required": [
        "text"
      ],
      "type": "object"
    }
  }
}