XXH128 Calculator

What is XXH128?

XXH128 is the 128-bit digest from the XXH3 family, often called XXH3-128. It produces a 32-digit hexadecimal checksum and is useful when a longer non-cryptographic fingerprint is preferred over 64-bit XXH3. For the 64-bit XXH3 digest, use XXH3.

How to calculate XXH128

Enter text, upload a file, or provide a URL. Optionally set a 64-bit seed, choose Hex or Base64 output, then click Hash. File and URL modes hash raw bytes; text mode uses the selected input encoding.

Seed

Seed is a hexadecimal value of up to 16 digits (0000000000000000–FFFFFFFFFFFFFFFF). Leave it at 0 unless a protocol or API specifies another value. Enter hex digits only, without a 0x prefix.

Result example

UTF-8 abc with seed 0 produces 06b05ab6733a618578af5f94892f3950.

Related calculators

• XXHash for all variants on one page
• XXH32, XXH64, XXH3