Generate SHA-1, SHA-256, and SHA-512 hashes from text.
A cryptographic hash function maps input data to a fixed-length fingerprint. The same input always produces the same hash, but the process is one-way — you cannot recover the original text from the hash.
SHA-256 and SHA-512 are widely used for integrity checks, checksums, and security workflows.
Enter or paste the text you want to hash.
Select SHA-1, SHA-256, or SHA-512.
Click Generate Hash and copy the hexadecimal result.
No. Hash functions are one-way. You can only verify a guess by hashing it again and comparing results.
SHA-1 is deprecated for security-critical use. Prefer SHA-256 or SHA-512 for new projects.
Yes. This tool is completely free to use with no sign-up, no limits, and no hidden fees.
No. All processing happens entirely in your browser using client-side JavaScript. Your data is never sent to a server or stored anywhere.
Free online utilities for text, code, and more — all running privately in your browser.