EazyTools4u

BLAKE2b-256 Hash Generator

Free online BLAKE2b-256 hash generator. Compute fast BLAKE2b 256-bit digests for text and files instantly in your browser.

Text mode — hashes your input as UTF-8 characters

Best for strings, passwords, JSON, and code. Need to verify a download against a published checksum? Switch to and drop the file in — text mode cannot reproduce a file checksum.

0 bytes (UTF-8)
BLAKE2256-bit

Enter text above to generate BLAKE2b-256 hash

Text encoded as UTF-8 · All processing is local

Related Hash Generators

BLAKE2b-512SHA-256BLAKE2s-256MD5SHA-1SHA-512SHA3-256Keccak-256

Need all algorithms at once? Open the full Hash Generator for every supported algorithm.

What is BLAKE2b-256?

BLAKE2b is a modern cryptographic hash optimized for speed and security, often faster than SHA-256 on 64-bit CPUs while providing similar security margins. BLAKE2b-256 produces a 256-bit digest (32 bytes). It is used in password hashing (Argon2 builds on BLAKE2), Linux kernel modules, and high-performance checksum systems.

Common use cases:

  • High-performance checksums where BLAKE2 is specified
  • Password hashing frameworks referencing BLAKE2
  • Verifying BLAKE2b test vectors in implementations
  • Fast integrity checks for large files

Examples

InputBLAKE2b-256 Hash
Eazytools4u87064c04473da816da6ac3c54589a6068429d9feb7a83bab3d47c4509a79e1d2
abcbddd813c634239723171ef3fee98579b94964e3bb1cb3e427262c8c068d52319
hello324dcf027dd4a30a932c441f365a25e86b173defa4b8e58948253471b81b72cf

Programming Examples

Node.js
const crypto = require("crypto");

const hash = crypto.createHash("blake2b512")
  .update("hello", "utf8")
  .digest("hex");

console.log(hash); // BLAKE2b-256 hex digest
Python
import hashlib

digest = hashlib.blake2b(b"hello", digest_size=32).hexdigest()
print(digest)

Frequently Asked Questions

BLAKE2b vs SHA-256 — which is faster?

BLAKE2b is often faster on modern 64-bit hardware, though actual speed depends on your CPU and library implementation.

Is BLAKE2 secure?

Yes. BLAKE2 was a SHA-3 finalist and has no known practical attacks. It is widely used in production systems.

BLAKE2b-256 vs BLAKE2b-512?

They differ in output length (256 vs 512 bits). BLAKE2b-256 produces a 32-byte digest; BLAKE2b-512 produces 64 bytes.

Can I hash files?

Yes. File mode hashes raw binary bytes locally without uploading.

← Back to all hash algorithms