Hashing

FNV-1a 64

FNV-1a 64 digest.

How to use FNV-1a 64

FNV-1a 64 — Compute an FNV-1a 64-bit hash and print it as lowercase hex. Free to use in D2i DevTools — no account required.

Steps

  1. Fill in Input. This field is required.
  2. Click Run and copy the result under the form.

Frequently asked questions

What is FNV-1a 64 used for?

Use it for a wider non-cryptographic fingerprint than FNV-1a 32. It is still not a security hash.

How do I use the free online FNV-1a 64 tool?

Fill in Input. This field is required. Click Run and copy the result under the form.

What can I paste or upload into FNV-1a 64?

Paste the text as UTF-8 bytes. The same string always hashes the same way on this page.

What output does FNV-1a 64 give me?

Up to 16 lowercase hex characters, with no 0x prefix and no zero-padding.

Is FNV-1a 64 free, and is my input private?

Yes — Your input is processed in memory for this request only. It is not saved to disk or the database, and it is cleared after the tool finishes.

Will FNV-1 and FNV-1a match?

No. This tool is FNV-1a (the XOR-then-multiply variant). FNV-1 uses a different step order and produces a different value.

Inputs are processed in memory only and are not saved to disk or the database. Data exists only for the duration of your request.