Something wrong with this tool?
About BLAKE2b-512 Hash Generator Online
BLAKE2b-512 is faster than MD5 on modern 64-bit hardware while providing strong cryptographic security. It is widely used in password managers, file verification tools, blockchain systems, and the libsodium cryptography library. BLAKE2b is optimised for 64-bit platforms.
Use this tool to quickly compute a BLAKE2b-512 hash for any text string. Enter your input, run the tool, and copy the hexadecimal digest. You can switch between lower-case and upper-case hex output to match the convention expected by your system.
How to use this tool
How to generate a BLAKE2b-512 hash
Enter your text
Paste or type any plain text into the Text field — up to 200,000 characters. This is the string that will be hashed using the BLAKE2b-512 algorithm.
Choose hex case
Select lower case (a–f, the default) or UPPER CASE (A–F) for the hexadecimal output. Both are valid — choose based on what your downstream system expects.
Run and copy the hash
Press Run. The BLAKE2b-512 hash is computed server-side and returned as a hexadecimal string. Click Copy to grab it. BLAKE2b-512 is faster than MD5 on modern hardware while being cryptographically secure. It is widely used in password managers, file verification, and blockchain systems.
Verify or compare
To verify a file's integrity, hash it as text and compare the output to the published checksum. To check two strings are equal without revealing the originals, hash both and compare the digests — identical digests mean identical inputs.