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SHA-3 Generator

Free online SHA-3 (Keccak) hash generator.

What Is a SHA-3 Generator?

The SHA-3 Generator computes a hash using the SHA-3 family, which is based on the Keccak sponge construction. It offers four digest sizes (224, 256, 384, and 512 bits). Unlike SHA-2, SHA-3 is built on a completely different design, making it a strong alternative in modern cryptography and a popular choice for blockchain and post-quantum research.

How to Use This SHA-3 Generator

  1. 1
    Choose a VariantSelect SHA3-224, SHA3-256, SHA3-384, or SHA3-512 from the dropdown.
  2. 2
    Input TextType or paste the text you want to hash into the input field.
  3. 3
    Copy ResultThe hash updates live; click the copy button to save it to your clipboard.

Frequently Asked Questions

SHA-2 and SHA-3 are both secure but structurally unrelated. SHA-2 uses a Merkle–Damgård construction, while SHA-3 uses a Keccak sponge construction, providing diversity in case weaknesses are ever found in one family.
SHA-3 is a standardized subset of the original Keccak algorithm. The standard SHA-3 variants use a domain-separation padding byte (0x06), which differs from raw Keccak used by some projects like early Ethereum.
SHA3-256 is the most common default and offers a good balance of security and output size. Choose SHA3-512 when maximum output entropy is required.

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