Online BLAKE2 / BLAKE3 Hash Generator
Generate BLAKE2b, BLAKE2s, and BLAKE3 hashes from text or file input. BLAKE2 and BLAKE3 are modern, high-performance cryptographic hash functions that are faster than MD5 and SHA-2 while being at least as secure.
What is BLAKE2?
BLAKE2 is a cryptographic hash function faster than MD5, SHA-1, SHA-2, and SHA-3, yet at least as secure as the latest SHA-3 standard. It comes in two flavors:
- BLAKE2b: Optimized for 64-bit platforms, produces digests up to 64 bytes (512 bits)
- BLAKE2s: Optimized for 32-bit platforms, produces digests up to 32 bytes (256 bits)
What is BLAKE3?
BLAKE3 is the next evolution, designed to be even faster than BLAKE2. It is a single algorithm with no variants, always producing a 256-bit output (extendable). BLAKE3 is based on an optimized Merkle tree structure that enables parallelism.
Key Characteristics
- BLAKE2b-256: 256-bit output (64 hex chars), 64-bit optimized
- BLAKE2b-512: 512-bit output (128 hex chars), 64-bit optimized
- BLAKE2s-256: 256-bit output (64 hex chars), 32-bit optimized
- BLAKE3-256: 256-bit output (64 hex chars), parallelizable
Use Cases
- File integrity verification
- Password hashing (BLAKE2 with salt/personalization)
- Digital signatures
- Blockchain and cryptocurrency applications
- Key derivation functions