Free online SHA hash generator supporting SHA-1, SHA-256, SHA-384 and SHA-512, computed instantly with the browser's native Web Crypto — your text is never uploaded. Useful for integrity checks and data fingerprints.
Computed with the browser's native Web Crypto — your text is never uploaded. Useful for integrity checks and data fingerprints.
A hash (like SHA-256) turns any content into a fixed-length fingerprint: the same input always gives the same result, but you can't reverse it to the original. It's used to verify content hasn't changed — checking a download's hash, confirming data integrity, or comparing values without storing plaintext.
After downloading software, compare it with the official SHA value to confirm it wasn't tampered with or truncated; in development, hashes serve as data fingerprints, cache keys or part of signature verification. Change one character and the hash is completely different — ideal for spotting any change.
Hashing is one-way and can't be reversed, so it's not encryption for 'decode it later' — use encryption for reversible protection. For a reversible representation use Base64, and for URL parameters use URL encoding; these often appear together in development.
The browser's native Web Crypto doesn't support MD5, and MD5 is no longer secure. This tool offers the stronger SHA family.
No, hashing is one-way — you can't recover the original text from a hash, which is why it's used for verification.
No, everything is computed in your browser with native Web Crypto — your text is never uploaded.