SHA-512 Generator
Hash FunctionsProcessed locally in your browser using the Web Crypto API. Nothing is sent to any server.
How It Works
This tool computes the SHA-512 hash of your input using the browser's native
crypto.subtle.digest() API. No external libraries are involved.
Algorithm Details
- Algorithm: SHA-512 (SHA-2 family)
- Output size: 512 bits (64 bytes, displayed as 128 hex characters)
- Block size: 1024 bits
- Implementation:
crypto.subtle.digest('SHA-512', data)— native browser API - Input encoding: UTF-8 via
TextEncoder
SHA-256 vs SHA-512
- Output length: 64 hex chars vs 128 hex chars
- Security margin: 128 bits vs 256 bits (both far beyond brute-force reach)
- Performance: SHA-512 is faster on 64-bit CPUs; SHA-256 on 32-bit
- Use cases: SHA-256 for general use; SHA-512 for maximum long-term security
Frequently Asked Questions
What is SHA-512?
SHA-512 produces a 512-bit hash output (128 hex characters). It belongs to the SHA-2 family and provides a higher security margin than SHA-256.
When should I use SHA-512?
Use SHA-512 when you need the highest security margin for long-term protection, or on 64-bit systems where it can outperform SHA-256. For most use cases, SHA-256 is sufficient.
Is SHA-512 faster than SHA-256?
On 64-bit processors, SHA-512 can be faster due to larger block processing. In browsers, the difference is negligible for typical inputs.
Privacy Note
This tool runs entirely in your browser. Your input is never uploaded, stored, or sent to any server.
Disclaimer: This tool is provided for educational and informational purposes only. The results do not constitute professional security advice. Use at your own discretion.