SHAKE128 Extendable-Output Function (XOF)

Calculate Keccak SHAKE128 extendable-output hash digests with standard 256-bit output length.

How It Works & Processing Standards

Calculate Keccak SHAKE128 extendable-output hash digests with standard 256-bit output length.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 2,000,000 characters

SHAKE128 Extendable-Output Function (XOF) is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use SHAKE128 Extendable-Output Function (XOF)

  1. 1
    Input TextEnter the message string.
  2. 2
    View DigestCopy the computed SHAKE128 hexadecimal digest.

Common Use Cases

  • Cryptographic pseudorandom generation, key derivation, and post-quantum lattice-based cryptography
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