Checksums hash-wasm hash

xxHash128 Generator - 128-bit Ultra-Fast Hash

Generate xxHash128 hashes - 128-bit output for lower accidental collision probability in distributed systems and databases.

xxhash128.workspace
2 options
0 bytes UTF-8, Hex, Base64, or File input

Secure client-side computation. No data leaves your browser. Privacy Security

Result Output

What Is xxHash128?

xxHash128 is an ultra-fast non-cryptographic hash function producing 128-bit output using xxHash3 algorithm with 128-bit internal state, ideal for large-scale systems where 64-bit accidental collision probability becomes more significant.

Specifications

Output Size 128 bits
Standard xxHash3 specification (Yann Collet)
Standard Year 2019

Use Cases

  • Large-scale distributed database sharding
  • Content-addressed storage systems
  • High-scale deduplication systems
  • Bloom filters with low false-positive rates
  • Checksums for billions of objects
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Security Notice

xxHash128 is not cryptographically secure and must not be used for passwords, signatures, or security applications.

Related Tools

xxHash3 Checksums BLAKE3 Hashes MD5 Hashes

Utilities

File Hash Verifier Verify local files against published checksums. Hash Compare Compare expected and actual digest values. Multi Hash Generator Generate common hashes from one input.

Guides

Algorithm Comparison Guide Choose the right primitive for each task. Hash Test Vectors Compare known outputs across common algorithms.

Implementation Notes

Practical usage details for this browser-based xxHash128 tool.

How to Generate a xxHash128 checksum

  1. Choose UTF-8, Hex, Base64, or File input mode.
  2. Enter text, encoded bytes, or choose a local file to process.
  3. Adjust the xxHash128 options if your use case requires non-default settings.
  4. Click Generate xxHash128 Checksum and copy the result.

Example Input

Sample input:

abc

Use this sample input, then copy the generated checksum from the result panel.

When Not to Use xxHash128

  • Do not use it for security-sensitive applications.
  • Do not use it for password storage.
  • Do not use it for digital signatures.

Recommended Alternatives

Review related tools when you need a different output size, security margin, or keyed construction.

Frequently Asked Questions