BLAKE3 is the newest cryptographic hash function, released in 2020 by the BLAKE2 team. It uses a Merkle tree structure that enables full parallelism — hashing independently on all CPU cores simultaneously. On multi-core CPUs, it achieves over 10 GB/s throughput.

How fast is BLAKE3 compared to SHA-256?

On modern multi-core CPUs, BLAKE3 is roughly 10x faster than SHA-256 and 3x faster than BLAKE2b. Even on a single core, BLAKE3 is about 2x faster than BLAKE2b. This makes it practical for real-time hashing of large files and streaming data.

What makes BLAKE3 faster than BLAKE2?

BLAKE3's Merkle tree design allows different parts of large input to be hashed independently and concurrently. On a 16-core CPU, BLAKE3 can split a file into 16 chunks and hash all simultaneously, achieving near-linear speed scaling.

Is BLAKE3 secure considering how new it is?

BLAKE3 inherits the security analysis of BLAKE2 (which was a SHA-3 finalist) and the Bao verified streaming protocol. Its core compression function is a simplified version of BLAKE2's. Its components have over a decade of cryptanalysis behind them.

BLAKE3 vs BLAKE2: which should I choose?

Choose BLAKE3 for large file hashing, multi-core servers, and performance-critical applications. Choose BLAKE2 for embedded systems without SIMD, compatibility with existing BLAKE2-based systems (Zcash, Decred), or when 512-bit output is specifically needed.

Tools

BLAKE3|64 hex chars

Input

Output

Hash result will appear here...

0 chars|0 bytes

BLAKE3 Hash Calculator — Fastest Merkle Tree Hash (10× SHA-256)

The newest hash algorithm (2020) featuring a Merkle tree architecture for full multithreading. 256-bit default output, up to 10× faster than SHA-256 on modern multi-core CPUs.

Features

✓Compute BLAKE3 hashes online — 2020's fastest hash, up to 10x faster than SHA-256
✓Real-time 256-bit hash computation with 64 hex character output (default)
✓One-click copy, download as .txt, and uppercase/lowercase toggle
✓Merkle tree architecture enables full multi-core parallel hashing
✓Hash verification against known BLAKE3 checksums
✓100% browser-based with WebAssembly SIMD acceleration for maximum speed

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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