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How to use FNV Hash

Paste your text to see its FNV-1a 32-bit hash as a hex value. The result updates live and can be copied instantly.

Frequently asked questions

What is FNV-1a?

Fowler–Noll–Vo is a simple, fast non-cryptographic hash. The 1a variant XORs the byte before multiplying by the FNV prime.

When should I use FNV?

For hash tables, checksums and load distribution where speed matters and cryptographic strength is not needed.

Is FNV secure?

No — it is easy to find collisions, so never use FNV for passwords, signatures or security tokens.

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