BLAKE2b Hash Generator
Paste text and choose an output size in MiniWebtool’s BLAKE2b Hash Generator to get a BLAKE2b hash at 256, 384, or 512 bits.
For Gemini, paste the copied question into the chat. You can also copy it below.Need help using this tool? Ask AI
View the question
Video Guide: BLAKE2b Hash Generator
About BLAKE2b Hash Generator
Welcome to the BLAKE2b Hash Generator, a professional cryptographic tool for generating BLAKE2b hashes from any text input. BLAKE2b is one of the fastest and most secure hash functions available, outperforming MD5, SHA-1, SHA-2, and SHA-3 in speed while maintaining excellent cryptographic strength.
At a Glance
The BLAKE2b Hash Generator computes the BLAKE2b hash of text you type, paste or import from a file. You choose a 256-, 384- or 512-bit output, shown as 64, 96 or 128 hex characters.
| Feature | What you get | Good for |
|---|---|---|
| Output size | Select 256-bit (64 hex characters), 384-bit (96 hex characters) or 512-bit (128 hex characters). | Matching the digest length another system expects |
| Text input | Type or paste the text to hash into the input area. | Hashing a string, token or message |
| File import | Import text from a file to hash its contents. | Hashing the contents of a text file without pasting it |
| Copy result | A copy button places the finished hash on your clipboard. | Pasting a hash into code or a checksum list |
| Hash breakdown | Shows a breakdown of the hash with technical specifications for BLAKE2b, such as a 128-byte block size and 12 rounds. | Learning how BLAKE2b is built |
Key Features of BLAKE2b
Lightning Fast
BLAKE2b is faster than MD5 and SHA families on modern 64-bit CPUs while providing superior security.
Highly Secure
Based on the BLAKE hash function (SHA-3 finalist), providing strong resistance against all known attacks.
Flexible Output
Supports variable output sizes from 1 to 64 bytes, with common options of 256, 384, and 512 bits.
What is BLAKE2b?
BLAKE2b is a cryptographic hash function optimized for 64-bit platforms. It was designed by Jean-Philippe Aumasson, Samuel Neves, Zooko Wilcox-O'Hearn, and Christian Winnerlein as an improved version of the BLAKE hash function, which was a SHA-3 competition finalist. BLAKE2b can produce hash digests of any size from 1 to 64 bytes (512 bits maximum).
How to Use This Tool
- Enter your text: Type or paste the text you want to hash into the input area. You can also import text from a file.
- Select output size: Choose your preferred hash length: 256-bit (64 hex chars), 384-bit (96 hex chars), or 512-bit (128 hex chars).
- Generate hash: Click the button to compute the BLAKE2b hash of your input.
- Copy result: Use the copy button to copy the hash to your clipboard.
BLAKE2b vs Other Hash Functions
| Hash Function | Output Size | Speed | Security Status |
|---|---|---|---|
| BLAKE2b | Up to 512 bits | Very Fast | Secure |
| SHA-256 | 256 bits | Medium | Secure |
| SHA-512 | 512 bits | Medium | Secure |
| SHA-3-256 | 256 bits | Slower | Secure |
| MD5 | 128 bits | Fast | Broken |
| SHA-1 | 160 bits | Medium | Broken |
Common Use Cases
File Integrity Verification
Verify that downloaded files have not been corrupted or tampered with by comparing hash values.
Data Deduplication
Identify duplicate data blocks in storage systems using content-addressable storage techniques.
Digital Signatures
Create message digests for digital signature schemes to ensure data authenticity.
Blockchain Applications
Used in cryptocurrencies like Zcash and various blockchain protocols for efficient hashing.
Password Hashing (via Argon2)
BLAKE2b is used internally by Argon2, the recommended password hashing algorithm.
Message Authentication
Generate keyed hashes (MACs) for message authentication with BLAKE2b's built-in keying mode.
Technical Specifications
- Block size: 128 bytes
- Word size: 64 bits
- Rounds: 12
- Maximum output: 64 bytes (512 bits)
- Maximum key size: 64 bytes
- Maximum input: 2^128 bytes
- Internal state: 8 x 64-bit words
Frequently Asked Questions
What is BLAKE2b?
BLAKE2b is a cryptographic hash function that is faster than MD5, SHA-1, SHA-2, and SHA-3, while being at least as secure as SHA-3. It was designed by Jean-Philippe Aumasson, Samuel Neves, Zooko Wilcox-O'Hearn, and Christian Winnerlein. BLAKE2b is optimized for 64-bit platforms and can produce digests of any size between 1 and 64 bytes.
What are the differences between BLAKE2b and BLAKE2s?
BLAKE2b is optimized for 64-bit platforms and produces digests up to 64 bytes (512 bits), while BLAKE2s is optimized for 8-bit to 32-bit platforms and produces digests up to 32 bytes (256 bits). BLAKE2b is generally faster on 64-bit systems, while BLAKE2s performs better on smaller architectures.
Is BLAKE2b secure for password hashing?
While BLAKE2b is cryptographically secure, it is designed for speed which makes it less suitable for password hashing directly. For password hashing, consider using Argon2 (which uses BLAKE2b internally) or bcrypt, which are specifically designed to be slow and memory-hard to resist brute-force attacks.
What output sizes does BLAKE2b support?
BLAKE2b can produce hash digests of any size from 1 to 64 bytes (8 to 512 bits). Common output sizes include 256 bits (32 bytes, 64 hex characters), 384 bits (48 bytes, 96 hex characters), and 512 bits (64 bytes, 128 hex characters). The default and maximum size is 512 bits.
Where is BLAKE2b used?
BLAKE2b is used in many applications including file integrity verification, digital signatures, password hashing (via Argon2), blockchain technologies (like Zcash), content-addressable storage systems, and as a general-purpose cryptographic hash function in libraries like libsodium and various programming language standard libraries.
How does BLAKE2b compare to SHA-256?
BLAKE2b is significantly faster than SHA-256 on 64-bit systems while providing equivalent or better security. In benchmarks, BLAKE2b can be 2-3 times faster than SHA-256. Both are considered cryptographically secure, but BLAKE2b offers better performance and more flexibility with its variable output size.
Additional Resources
Reference this content, page, or tool as:
"BLAKE2b Hash Generator" at https://MiniWebtool.com/blake2b-hash-generator/ from MiniWebtool, https://MiniWebtool.com/
by miniwebtool team. Updated: Jan 27, 2026
Chat with your favorite AI
For Gemini, paste the copied question into the chat. You can also copy it below.
View the question
Hash and Checksum:
- Adler32 Checksum Calculator
- Argon2 Hash Generator
- Bcrypt Hash Generator / Checker Popular
- BLAKE2b Hash Generator
- CRC32 Checksum Calculator
- CRC64 Checksum Calculator
- FNV-1a Hash Generator
- MD5 Hash Generator Popular
- MurmurHash3 Generator
- RIPEMD-160 Hash Generator
- RSA Encryption Step-by-Step Simulator
- SHA1 Hash Generator
- SHA224 Hash Generator
- SHA256 Hash Generator Popular
- SHA384 Hash Generator
- SHA3-256 Hash Generator
- SHA3-384 Hash Generator
- SHA3-512 Hash Generator
- SHA512 Hash Generator Popular
- Whirlpool Hash Generator