SHA-512 Hash Generator
Generate a SHA-512 hash from any text.
SHA-512 Generator
Developer tool running locally in browser
What does SHA-512 Generator do?
Produce a SHA-512 hash — 512 bits, 128 hexadecimal characters. SHA-512 offers a larger digest than SHA-256 and is often faster on 64-bit hardware because it operates on 64-bit words.
How to Use SHA-512 Generator
- 1Enter your textThe hash computes live.
- 2Pick SHA-512 or SHA-384Both are shown.
- 3Copy the resultIn hex or Base64.
Key Features
- SHA-512 and SHA-384 from the same input
- Hex and Base64 output formats
- HMAC-SHA512 with a secret key
- Verification field for comparing against an expected value
- Native Web Crypto implementation
Frequently Asked Questions
Is SHA-512 better than SHA-256?
It has a larger digest, which gives more collision resistance in theory, but SHA-256 is already far beyond any practical attack. On 64-bit hardware SHA-512 is often faster; on 32-bit systems it is slower.
What is SHA-384?
SHA-512 truncated to 384 bits, with different initial values. It is specified for higher-security TLS cipher suites and is immune to the length-extension attack that affects full SHA-512.
Can I use SHA-512 for passwords?
Not on its own. It is fast, which is exactly wrong for password storage. Use bcrypt, scrypt or Argon2, which are deliberately slow and memory-hard.
How long is the output?
128 hexadecimal characters for SHA-512 and 96 for SHA-384, whatever the input length.
Hashing uses the browser Web Crypto API. Nothing you enter is transmitted or stored.
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