SHA-512 Hash Generator
Runs in your browser — your data is never uploaded.
Compute the SHA-512 hash of any text and get the full 128-character lowercase hex digest. SHA-512 is the widest member of the SHA-2 family and is what you reach for when a 256-bit digest is not enough — long-lived signatures, key derivation, and standards that specify it outright. It is computed by your browser’s built-in WebCrypto implementation rather than third-party JavaScript, and never leaves your device.
0 characters · runs entirely in your browser
How to use SHA-512 Hash Generator
- 1
Paste or type the text you want to hash.
- 2
Switch algorithm if you need a shorter digest — SHA-512 is the default here.
- 3
Click “Generate hash” and copy the 128-character hex digest.
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Frequently asked questions
Is SHA-512 better than SHA-256?+
Stronger in the sense that the digest is twice as long, but SHA-256 has no practical weakness, so “better” rarely means “more appropriate”. Choose SHA-512 when a specification or protocol requires it, or when you want extra margin for something that must stay valid for decades — not by default.
Is it slower than SHA-256?+
Usually the opposite on modern 64-bit hardware. SHA-512 operates on 64-bit words and often outruns SHA-256 on the same machine, despite producing a longer digest. On 32-bit platforms the reverse holds.
What is SHA-512/256?+
A distinct algorithm: SHA-512 run with different initial values and truncated to 256 bits. It is not the same as taking the first 64 characters of this output, and the two produce different digests. This tool does not implement it.
Can I use this for password hashing?+
No. Every SHA is designed to be fast, which is exactly wrong for passwords — speed is what makes brute force cheap. Use bcrypt, scrypt or Argon2, which are deliberately slow and salted.
Why is the output so long?+
SHA-512 produces 512 bits, and each byte is written as two hex characters — 64 bytes, 128 characters. It is the digest itself, not padding.