xxHash is an extremely fast non-cryptographic hash algorithm created by Yann Collet. It's optimized for speed while maintaining excellent distribution and collision resistance for checksums.

xxHash can process data at RAM speed limits (10+ GB/s on modern hardware). It's significantly faster than MD5, CRC32, and most other hash algorithms.

xxHash is used in LZ4 compression, Facebook's RocksDB, Redis, PostgreSQL, ClickHouse, file deduplication, hash tables, and anywhere fast checksums are needed.

No. xxHash is designed for speed, not security. It's not collision-resistant against intentional attacks. Use SHA-256 or BLAKE3 for cryptographic purposes.

xxHash32 produces a 32-bit hash, xxHash64 produces a 64-bit hash. xxHash64 offers better collision resistance and is often faster on 64-bit systems.

xxHash3 is the newest version, optimized for both short and long inputs. It's even faster than xxHash64 on modern CPUs with AVX2/NEON support.

Yes. xxHash is excellent for detecting file changes, deduplication, and integrity checking where speed matters more than cryptographic security.

Yes. All computation happens in your browser using JavaScript. Your data never leaves your device.

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