BLAKE2b-256 is a cryptographic hash producing 256-bit output, optimized for 64-bit platforms. Designed as an improvement of BLAKE (SHA-3 finalist), it is faster than MD5 while providing SHA-3 level security.

Why is BLAKE2b-256 faster than MD5?

BLAKE2b was designed for modern CPUs with SIMD and efficient 64-bit arithmetic. MD5 was designed in 1992 for 32-bit machines. BLAKE2b processes larger chunks with fewer rounds.

BLAKE2b-256 vs SHA-256?

BLAKE2b-256 is 2-3x faster on 64-bit CPUs with identical 128-bit security. SHA-256 has wider ecosystem support and hardware acceleration. Choose BLAKE2b for performance, SHA-256 for compatibility.

Which cryptocurrencies use BLAKE2b?

Zcash uses BLAKE2b for Equihash proof-of-work. Decred uses BLAKE2b-256. Siacoin and other blockchain projects adopted it for speed and security.

Can BLAKE2b-256 replace SHA-256 everywhere?

Technically yes, practically no. SHA-256 is mandated by many standards. BLAKE2b is ideal for new systems where you control the full stack and performance matters.

Tools

BLAKE2b-256|64 hex chars

Input

Output

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BLAKE2b-256 Hash Calculator — Faster Than MD5, Secure as SHA-3

High-speed cryptographic hash optimized for 64-bit platforms, 256-bit output. Faster than MD5 yet as secure as SHA-3. Adopted by Zcash and Decred blockchains.

Features

✓Compute BLAKE2b-256 hashes online — faster than MD5, secure as SHA-3
✓Real-time 256-bit hash computation with 64 hex character output
✓One-click copy, download as .txt, and uppercase/lowercase toggle
✓Optimized for 64-bit platforms — adopted by Zcash and Decred blockchains
✓Hash verification against known BLAKE2b-256 checksums
✓100% browser-based with WebAssembly-powered high-speed hashing

How to Use

1Type or paste your text into the input box above.
2Your hash digest appears instantly — no page reload needed.
3Toggle UPPERCASE / lowercase to change the hex output format.
4Click the copy icon to copy the hash to clipboard, or use Download to save as .txt.
5Paste an expected hash into the Verify field to check for a match.

Frequently Asked Questions

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