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SHA512 Encrypt & Decrypt
Generate SHA512 hashes from any text instantly. The strongest SHA-2 algorithm — 512-bit output used in password hashing, high-security systems, and government applications.
What Each Algorithm Is Used For
SHA512 — 512-bit Hash
Produces a 128-character hex string. Maximum SHA-2 security with 256-bit collision resistance.
Password Hashing
PBKDF2-SHA512 and SHA512-crypt ($6$) are used in Linux systems for secure password storage with salting.
Government & Military
SHA512 meets FIPS 180-4 requirements and is approved for classified government and military cryptographic use.
64-bit Optimized
SHA512 processes data in 1024-bit blocks using 64-bit operations — highly efficient on all modern 64-bit hardware.
How to Use
SHA512 Pre-Selected
SHA512 is automatically active — the strongest SHA-2 algorithm. It generates a 512-bit (128 character) hash. Used for password hashing, high-security data integrity, and government systems.
Enter Your Text
Type or paste any string. SHA512 hash generates instantly. Its 512-bit output provides the highest security margin in the SHA-2 family.
Verify with Comparison
Paste two SHA512 hashes in the comparison tool to verify they match — commonly used for password hash verification and file integrity checking.
Bulk SHA512 & Export
Switch to Bulk Mode to SHA512-hash multiple strings at once and download all results as a CSV file.
Frequently Asked
Questions
1. What is SHA512?
SHA512 is part of the SHA-2 family and produces a 512-bit (128 character hexadecimal) hash — the largest output in the standard SHA-2 family. It was designed by the NSA and published by NIST. SHA512 is used in password hashing schemes, high-security cryptographic applications, and is recommended for systems requiring the strongest available SHA-2 security.
2. Is SHA512 the most secure SHA algorithm?
SHA512 offers the highest security margin in the SHA-2 family with 256-bit collision resistance. It’s the recommended choice for: PBKDF2-SHA512 password hashing, long-term data integrity where quantum computing is a concern, military and government cryptographic systems, and any application where maximum SHA-2 security is required.
3. What is the SHA512 hash length?
A SHA512 hash is always exactly 128 characters long (512 bits / 64 bytes). This is the longest output in the standard SHA-2 family, making it ideal for scenarios where maximum hash uniqueness is critical.
4. Is SHA512 faster or slower than SHA256?
On 64-bit systems, SHA512 can actually be faster than SHA256 per byte for large inputs because it processes 1024-bit blocks using 64-bit operations. On 32-bit systems, SHA512 is slower. For web servers and modern hardware, the performance difference is negligible.
5. Is my data private?
100% private. SHA512 hashing runs entirely in your browser using CryptoJS. Nothing is ever sent to any server. Your passwords, API keys, and sensitive data never leave your device
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