Hashes hash-wasm hash

BLAKE2s Hash Generator - Free Online Tool

Generate lightweight BLAKE2s hashes for constrained devices.

blake2s.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 BLAKE2s?

BLAKE2s is a lightweight hash function optimized for 8-bit to 32-bit platforms that produces variable-length hashes up to 256 bits, designed for constrained environments and faster than SHA-256.

Specifications

Output Size 256 bits
Standard RFC 7693
Standard Year 2015
Origin BLAKE2 paper
Origin Year 2013

Use Cases

  • Embedded systems and IoT devices
  • Mobile applications with limited resources
  • Cryptographic protocols on 32-bit platforms
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Security Notice

BLAKE2s 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

BLAKE2b Hashes SHA-256 Hashes BLAKE3 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 BLAKE2s tool.

How to Generate a BLAKE2s 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 BLAKE2s options if your use case requires non-default settings.
  4. Click Generate BLAKE2s 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 BLAKE2s

  • 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