Hashes hash-wasm hash

BLAKE2b Hash Generator - Free Online Tool

Generate high-performance BLAKE2b hashes optimized for 64-bit.

blake2b.workspace
2 options
0 bytes UTF-8, Hex, Base64, or File input
Options

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

Result Output

What Is BLAKE2b?

BLAKE2b is a high-performance hash function optimized for 64-bit platforms that produces variable-length hashes up to 512 bits, based on the BLAKE finalist from the SHA-3 competition. It is faster than MD5 yet secure.

Specifications

Output Size 512 bits
Standard RFC 7693
Standard Year 2015
Origin BLAKE2 paper
Origin Year 2013

Use Cases

  • High-performance file integrity checks
  • Password hashing with key derivation
  • Modern cryptographic applications
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Security Notice

BLAKE2b is suitable for cryptographic integrity checks and fingerprints when used appropriately. Use HMAC or KMAC when you need message authentication, and use a dedicated KDF such as Argon2, bcrypt, or scrypt for password storage.

Related Tools

BLAKE3 Hashes SHA-512 Hashes BLAKE2s Hashes SHA-256 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 BLAKE2b tool.

How to Generate a BLAKE2b hash

  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 BLAKE2b options if your use case requires non-default settings.
  4. Click Generate BLAKE2b Hash and copy the result.

Example Input

Sample input:

abc

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

When Not to Use BLAKE2b

  • Do not use a plain hash or derivation output directly as password storage without the right password-hashing construction and parameters.

Recommended Alternatives

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

Frequently Asked Questions